backend resolve properties
adds caching to normal placeholders and optimizes imports for debugtoolbar cache panel
fixed tests
ensure model reloads on given on_close param (either REFRESH_PAGE or a url)
remove close-on-url in favor of redirect-on-close
remove not required comma
streamline close settings
docs
use alphabetically order
ensur eon_close also works on the sideframe
Merge branch 'develop' of github.com:divio/django-cms into fix-2514

Conflicts:
	cms/templates/cms/toolbar/items/item_modal.html
remove close_on_url reference from docs
Merge pull request #5 from FinalAngel/fix-2514

Fixes sideframe and modal to listen to on_close and refresh_page
cache views
Merge branch 'develop' into fix-2267

Conflicts:
	cms/tests/admin.py
	cms/views.py
caching for views.py
docs
do not cache pages for logged in users
test caching of placeholders
page cache finalized, settings added, docs and release notes