Django-cms

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- Addresses security vulnerabilities in the `render_model` template tag that could
lead to escalation of privileges or other security issues.
- Fix ExtensionToolbar when language is removed but titles still exists…
- Fix PageSelectWidget JS syntax
- Fix cache settings

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- Fixed JavaScript error when using ``PageSelectWidget``
- Fixed whitespace markup issues in draft mode
- Added plugin migrations layout detection in tests

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- Relax html5lib versions
- Fix redirect when deleting a page
- Correct South migration error
- Correct validation on numeric fields in modal popups
- Exclude scssc from manifest
- Remove unpublished pages from menu
- Remove page from menu items for performance reason
- Fix reachability of pages with expired ancestors
- Don't try to modify an immutable QueryDict
- Only attempt to delete cache keys if there are some to be deleted
- Update documentation section
- Fix language chooser template
- Cast to int cache version
- Fix extensions copy when using duplicate page/create page type

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- Fixed an issue where privileged users could be tricked into performing actions without their knowledge via a CSRF vulnerability
- Fixed an issue related to "Empty all" Placeholder feature
- Fix issue with causes menu classes to be duplicated in advanced settings
- Fix issue with breadcrumbs not showing
- Fix issues with show_menu templatetags
- Fix plugin sorting in py3
- Fix search results number and items alignment in page changelist
- Fix X-Frame-Options on top-level pages
- Preserve information regarding the current view when applying the CMS decorator
- Fix render_model template tag doesn't show correct change list
- Fix language fallback for nested plugins
- Fix order of which application urls are injected into urlpatterns
- Fix delete non existing page language
- Fix Scanning for placeholders fails on include tags with a variable as an argument
- Minor documentation fixes
- Pin South version to 1.0.2
- Pin Html5lib version to 0.999 until a current bug is fixed
- Fix language chooser template

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- Numerous documentation including installation and tutorial updates
- Numerous improvements to translations
- Improves reliability of apphooks
- Improves reliabiliy of Advanced Settings on page when using apphooks
- Allow page deletion after template removal
- Improves upstream caching accuracy
- Improves CMSAttachMenu registration
- Improves handling of mistyped URLs
- Improves redirection as a result of changes to page slugs, etc.
- Improves performance of "watched models"
- Improves frontend performance relating to resizing the sideframe
- Corrects an issue where items might not be visible in structure mode menus
- Limits version of django-mptt used in CMS for 3.0.x
- Prevent accidental upgrades to Django 1.8, which is not yet supported

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- Fixed a typo in JavaScript which prevents page tree from working