* Update wrong zip-code

Handle string length as size_t, consistently (almost always:))
Change function prototypes to accept size_t, where in the past
ulong or uint were used. change local/member variables to size_t
when appropriate.

This fix excludes rocksdb, spider,spider, sphinx and connect for now.

- Added sql/mariadb.h file that should be included first by files in sql
  directory, if sql_plugin.h is not used (sql_plugin.h adds SHOW variables
  that must be done before my_global.h is included)
- Removed a lot of include my_global.h from include files
- Removed include's of some files that my_global.h automatically includes
- Removed duplicated include's of my_sys.h
- Replaced include my_config.h with my_global.h

* pass LEX_STRING's from the parser, don't ignore the length only to strlen later
* init LEX::server_options only for SERVER commands, not for every statement
* don't put temporary values into a global persistent memroot

but really it's just scratching a surface

This patch:

- Moves all definitions from the mysql_priv.h file into
  header files for the component where the variable is
  defined
- Creates header files if the component lacks one
- Eliminates all include directives from mysql_priv.h
- Eliminates all circular include cycles
- Rename time.cc to sql_time.cc
- Rename mysql_priv.h to sql_priv.h

            
Adding header include file guards to files that are missing such.

* Modified Federated memory allocation to use MEM_ROOT
* Modified sql_servers and federated to allocate share connection
  parameters to use MEM_ROOT
* Modified Federated to allow tablename in addition to server name
* Implicit flushing of tables using altered/dropped server name
* Added tests to prove new functionality works

Contributors to this patch: Patrick Galbraith, Antony Curtis


mysql-test/r/federated_server.result:
  BUG #26257 New Federated Server Functionality Doesn't support differently named tables
  
    New test results
mysql-test/t/federated_server.test:
  BUG #26257 New Federated Server Functionality Doesn't support differently named tables
  
  New test which ensures that one can use the new 'create server'
  functionality and have tables point to the correct table, using CONNECTION='server',
  CONNECTION="server/tablename" and CONNECTION="mysql://...url"
sql/mysql_priv.h:
  BUG #26257 New Federated Server Functionality Doesn't support differently named tables
  
  new function: close_cached_connection_tables()
sql/sql_base.cc:
  BUG #26257 New Federated Server Functionality Doesn't support differently named tables
  
  new function: close_cached_connection_tables()
    closes all open tables which match connection string
    provides functionality to allow flushing of altered/dropped server names.
sql/sql_servers.cc:
  BUG #26257 New Federated Server Functionality Doesn't support differently named tables
  
  * Added function clone_server() to allocate a new server for use by
    get_server_by_name() when creating a federated table
  
  * Now using MEM_ROOT allocation (mark and sweep) to account for meta
    data parameters being allocated properly, particularly with regards to
    to SERVER object. Also cleans up code allocating share.
  
  * Tables using the old definition of server name are now flushed on successful
    execution of ALTER/DROP SERVER.
  
  style: fixed some line-wrapping
sql/sql_servers.h:
  BUG #26257 New Federated Server Functionality Doesn't support differently named tables
  
  * change in prototype to get_server_by_name()
    caller can now provide mem_root which strings will be copied in to.
storage/federated/ha_federated.cc:
  BUG #26257 New Federated Server Functionality Doesn't support differently named tables
  
  * Simplified share and share member memory allocaton to use MEM_ROOT
  * Modified parse_url to parse table names along with server names
storage/federated/ha_federated.h:
  BUG #26257 New Federated Server Functionality Doesn't support differently named tables
  
  * Added MEM_ROOT share member