Revert "Resolution for issue 205 - commit and approve buttons look disabled"

This reverts commit 1bf9fd972afdab5aecf76318070bf30efb41ea18.
Correct easy_thumbnails.VERSION check

Don't compare a tuple to an int
Update demo project requirements

Use Django 1.4 for LTS, Mezzanine 3.1.2 for pages context
processors, required django-filer version from Widgy, and
django-debug-toolbar 1.0.0 for new panel locations
Add Page Order to demo.settings
Update recommend ADMIN_MENU_ORDER to clarify django-filer
testing mezzanine fixes
popup button and input field styles
filer popup style fix
popup styles for form fields