[v4_2] Update 3rd party licnese issues

    Instead of duplicating more third-party licenses here in LICENSE
    file (there are many), just generically suggest to see the other files.

    Per the md5 copyright license agreement, add mention of
    required verbatim advertising statement in the release notes and
    readme.

    In the RELNOTES, I also mention ISC is open source software.

    In the README, I added a HISTORY section and placed that
    advertising statement there. If the HISTORY section is not wanted,
    then remove it and just mention the required verbatim advertising statement.
    By the way, some good history is in old READMEs and at
    http://hack.org/mc/texts/dhcp-freenix.txt
    (but I can't find the official hosted Lemon version of that paper).

    Remove the advertising clause from the historical BSD
    code copyrighted by The Regents of the University of California.

    For details see
    ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

    (To summarize: in 1999, the University said that distributors
    are no longer required to acknowledge within advertising and the
    paragraph in the license may be deleted.)

15 files changed, 36 insertions, 60 deletions

diff --git a/LICENSE b/LICENSE
index eef341e1..dc09c0aa 100644
--- a/LICENSE
+++ b/LICENSE
@@ -18,3 +18,6 @@
 #   Redwood City, CA 94063
 #   <info@isc.org>
 #   https://www.isc.org/
+
+See the specific source files for any additional copyright or
+license statements.
diff --git a/README b/README
index 6cfc0732..0bf75f37 100644
--- a/README
+++ b/README
@@ -40,6 +40,7 @@ the ISC DHCP Distribution.
 	 5.10	 MacOS X
 	6	SUPPORT
 	 6.1	 HOW TO REPORT BUGS
+	7	HISTORY
 
 		      WHERE TO FIND DOCUMENTATION
 
@@ -692,3 +693,19 @@ bug reports are more likely to get handled more quickly overall.
 Please see https://www.isc.org/software/dhcp/ for details on how to subscribe
 to the ISC DHCP mailing lists.
 
+			       HISTORY
+
+ISC DHCP was originally written by Ted Lemon under a contract with
+Vixie Labs with the goal of being a complete reference implementation
+of the DHCP protocol.  Funding for this project was provided by
+Internet Systems Consortium. The first release of the ISC DHCP
+distribution in December 1997 included just the DHCP server.
+Release 2 in June 1999 added a DHCP client and a BOOTP/DHCP relay
+agent. DHCP 3 was released in October 2001 and included DHCP failover
+support, OMAPI, Dynamic DNS, conditional behaviour, client classing,
+and more. Version 3 of the DHCP server was funded by Nominum, Inc.
+The 4.0 release in December 2007 introduced DHCPv6 protocol support
+for the server and client.
+
+This product includes cryptographic software written
+by Eric Young (eay@cryptsoft.com).
diff --git a/RELNOTES b/RELNOTES
index ef39e05e..d9a07ead 100644
--- a/RELNOTES
+++ b/RELNOTES
@@ -39,6 +39,10 @@ The system has only been tested on Linux, FreeBSD, and Solaris, and may not
 work on other platforms. Please report any problems and suggested fixes to
 <dhcp-users@isc.org>.
 
+ISC DHCP is open source software maintained by Internet Systems
+Consortium.  This product includes cryptographic software written
+by Eric Young (eay@cryptsoft.com).
+
 			Changes since 4.2.5
 
 - Address static analysis warnings.
diff --git a/includes/arpa/nameser.h b/includes/arpa/nameser.h
index df5e1f94..ef9ac05e 100644
--- a/includes/arpa/nameser.h
+++ b/includes/arpa/nameser.h
@@ -10,11 +10,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- * 	This product includes software developed by the University of
- * 	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  * 
diff --git a/includes/arpa/nameser_compat.h b/includes/arpa/nameser_compat.h
index 3ae17f0e..fa30d99a 100644
--- a/includes/arpa/nameser_compat.h
+++ b/includes/arpa/nameser_compat.h
@@ -9,11 +9,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- * 	This product includes software developed by the University of
- * 	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  * 
diff --git a/includes/netinet/if_ether.h b/includes/netinet/if_ether.h
index 8de80235..a1337100 100644
--- a/includes/netinet/if_ether.h
+++ b/includes/netinet/if_ether.h
@@ -12,11 +12,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
diff --git a/includes/netinet/ip.h b/includes/netinet/ip.h
index 0a1e3584..9d20e5f0 100644
--- a/includes/netinet/ip.h
+++ b/includes/netinet/ip.h
@@ -12,11 +12,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
diff --git a/includes/netinet/ip_icmp.h b/includes/netinet/ip_icmp.h
index 8fffb58b..0f40c3bb 100644
--- a/includes/netinet/ip_icmp.h
+++ b/includes/netinet/ip_icmp.h
@@ -12,11 +12,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
diff --git a/includes/netinet/udp.h b/includes/netinet/udp.h
index 5f1cd7d2..d86cf447 100644
--- a/includes/netinet/udp.h
+++ b/includes/netinet/udp.h
@@ -12,11 +12,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
diff --git a/minires/res_comp.c b/minires/res_comp.c
index baef4f79..eeee4c0d 100644
--- a/minires/res_comp.c
+++ b/minires/res_comp.c
@@ -10,11 +10,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- * 	This product includes software developed by the University of
- * 	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  * 
diff --git a/minires/res_init.c b/minires/res_init.c
index 39da2bc6..ec38962e 100644
--- a/minires/res_init.c
+++ b/minires/res_init.c
@@ -10,11 +10,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- * 	This product includes software developed by the University of
- * 	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  * 
diff --git a/minires/res_mkquery.c b/minires/res_mkquery.c
index f54e0484..bd50ca24 100644
--- a/minires/res_mkquery.c
+++ b/minires/res_mkquery.c
@@ -10,11 +10,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- * 	This product includes software developed by the University of
- * 	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  * 
diff --git a/minires/res_query.c b/minires/res_query.c
index 2e75fe82..c522e432 100644
--- a/minires/res_query.c
+++ b/minires/res_query.c
@@ -10,11 +10,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- * 	This product includes software developed by the University of
- * 	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  * 
diff --git a/minires/res_send.c b/minires/res_send.c
index 896b0f5d..9f5dee63 100644
--- a/minires/res_send.c
+++ b/minires/res_send.c
@@ -10,11 +10,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- * 	This product includes software developed by the University of
- * 	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  * 
diff --git a/omapip/inet_addr.c b/omapip/inet_addr.c
index c5ccc79f..c7d7ffe9 100644
--- a/omapip/inet_addr.c
+++ b/omapip/inet_addr.c
@@ -12,11 +12,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
+ * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *