Updating README.
Merge pull request #13 from dhui/readme

Updating README
Bump version of django-richenum
Merge pull request #15 from adepue/master

Bump version of django-richenum
Adds introspection rules for South
Merge pull request #16 from bennylope/south

Adds introspection rules for South
Add Ben Lopatin as an author.
Bump version number from 1.0.0 to 1.0.1
Merge pull request #17 from dhui/version

Bump version number
Update readme.
Merge pull request #19 from dhui/readme

Update readme.
_BaseEnumField: Make run_validators method a no-op

See the comment in this commit-- I can't see value in allowing custom
validators on EnumFields and the implementation in the superclass causes
warnings in RichEnum.__eq__.

Arguably those warnings aren't useful (warning against []/falsy compare).
In that case, we can revert this when they're silenced.

Alternatively, if we need the warnings and need this functionality, we'd have
re-implement the method in the superclass without said check, or live with
warnings every time a form containing an EnumField is validated, which sucks.
Update CHANGELOG and package version
Merge pull request #20 from rbm/cleanup-validators

_BaseEnumField: Make run_validators method a no-op