Always output non-localized dates.

See brutasse/#27

This change makes date fields always output RFC-3339 
format dates as the html5 specification requires.
Merge remote-tracking branch 'poswald/date-fix'
Rolled back e5022e

This brings back support of python envs which don't have ctypes enabled. In
particular, GAE.

Thanks @stucox for the report.
Fixed #47 -- browser caching bug on MapWidget

Thanks @adamhotz for the detailed report.
Added missing SlugInput in the __all__ declaration
Fixed #27 -- always output non-localized, RFC3339 values

This is what the HTML5 spec requires. Browsers themselves should be in charge
of localization. Chrome does it for the date and time inputs, other desktop
browsers have very limited support.
Bumped version number to 1.1
Ported a fix from Django

https://github.com/django/django/commit/d11038acb2ea2f59a1d00a41b553f578b5f2c59c
Fixed a typo

Thanks Vraj Mohan for the patch.
Proper link for Django 1.5
Exclude django 1.4/py3.3 again
Fix minor errors in examples
Merge pull request #67 from DrMeers/master

Fix minor errors in examples
Merge branch 'master' of git://github.com/brutasse/django-floppyforms