forms.widgets: Add missing import

Signed-off-by: Philippe Pepiot <phil@philpep.org>
Merge pull request #105 from philpep/master

Fix missing import of time module (thx @philpep)
updated google dojo versions up to 1.8.3 according to https://developers.google.com/speed/libraries/devguide#dojo
Use builtin json instead of django.utils.simplejson deprecated in 1.5

For further explanation: https://docs.djangoproject.com/en/1.5/releases/1.5/#system-version-of-simplejson-no-longer-used
django.conf.urls.defaults is deprecated
Merge pull request #109 from zalmoxis/master

updated google versions up to 1.8.3
Merge pull request #110 from williambr/master

 Use builtin json instead of django.utils.simplejson deprecated in 1.5
Do version-dependent imports
Bump version 0.5.6
Mark dojango as 0.5.7 alpha
Use force_str to allow import when using unicode_literals - fixes #112
Updated Google versions up to 1.9.1
InlineForeignKeyHiddenInput has been removed in django 1.6
Fix widget for IntegerField in django 1.6
Merge pull request #116 from williambr/django16integer

Fix widget for IntegerField in django 1.6
Merge pull request #115 from williambr/django16fix

InlineForeignKeyHiddenInput has been removed in django 1.6
Cleanup setup.py
Add empty dojo-media/src folder
Create empty file
Merge pull request #113 from rhunwicks/master

Use force_str to allow import when using unicode_literals - fixes #112