* bcrypt fuzz fix: detect $2$ hashes w/ passwords like 'abc' 'abcabc' and regenerate,
  since $2$ would hash them the same. one in a million chance, but I hit it.
* django_bcrypt: skip multi-ident testing entirely, only one prefix is used.
* get_fuzz_settings() now handles passwords too, so handlers can alter them
* get_fuzz_ident() now checks os_supports_ident() directly, so bcrypt test doesn't have to
* test_14_salt_chars now cleans up salt, so bcrypt test doesn't have to
* glitch in fuzz skip code
* add tox.ini to sdist

* added code to make builtin snapshots & releases with correct version # easier,
  no longer dependant on egg_info's tag_date (which didn't make PEP compatible
  version strings anyways).

* moved passlib.setup to passlib._setup - not really publically useful anyways,
  and name was causing nose/unitest to get confused

* added tests/*.cfg to setup & manifest