page type business rules
Installed jQuery.datetimepicker

https://github.com/xdan/datetimepicker/commit/3e320c9046f9c735bbff1c9e39056f
Swapped out jQueryUI datetimepicker for xdsoft datetimepicker
Removed jQueryUI datetimepicker
Added seconds to timepicker. Added masks to all datetime pickers
Fixed a couple of references to "localize" templatetags library
This was removed in 99a70b3
Merge branch 'master' into pr/286
styled datepicker nicer
Added I18N to new datetime picker
Aesthetic improvements to preview experience. Loading spinner now uses wagtail's standard glyph.
improvements from kaedroho feedback
tweaked transition
removed redundant script block
Set treebeard attributes in preview on create view. Fixes #320
Added tests for db6bb92
typo in comment
Merge branch 'business-rules' of https://github.com/lojack/wagtail into lojack-business-rules

Conflicts:
	wagtail/tests/models.py
	wagtail/wagtailadmin/tests.py
remove redundant imports from wagtailcore/models.py
Merge pull request #321 from kaedroho/issue-320

Set treebeard attributes in preview on create view. Fixes #320
Remove subpage_types logic from is_navigable and get_navigation_menu_items. It's now clear that we will never mandate the use of subpage_types, so we can't use its presence or absence as an indicator of whether or not a page is appropriate to be included in navigation menus.