BUG Fix sorting on main ReportAdmin grid
ref: CWPBUG-133
FIX ensure controller stack is updated when execution halted by an exception.

See: https://github.com/silverstripe/silverstripe-framework/issues/2467

popCurrent would be incorrectly not pop a controller from the controller stack if an exception was throw from inside the handleRequest() method.

This change captures the exception, ensures the controller is popped from the stack and passes the exception along.
Merge pull request #1039 from dnadesign/fixpopcurrentwarning

FIX ensure controller stack is updated when execution halted by an exception
BUG: Narrowing site tree search to one date shows no pages

It turns out that the search doesn't work if you put the same date into both start and end date. Adding
time to the query seems to fix this issue.
Merge pull request #1060 from stojg/pull/search-for-date

BUG: Narrowing site tree search to one date shows no pages
Bug: CMS tree filters doesn't count the correct number of children for deleted pages

This is a bug that combines Hierarchy, Versioned and LeftAndMain admins and CMSSiteTreeFilters.

This bug can be reproduced by having a large site tree with enough deleted pages in it so it doesn't
pre load all the children pages when initially opening an admin. Filter by either 'All pages including deleted'
or 'Deleted pages'. For CMS users it will look like deleted pages are gone.

The solution involves a couple of smaller fixes in both CMS and framework modules.

1) Ensure that 'numHistoricalChildren' are used instead of 'numChildren' when dealing with deleted pages
2) LeftAndMain::currentPage() deletes all the 'marking' cache previously built up by Hierarchy::markPartialTree()
3) Use Versioned::get_included_deleted() instead of raw DB queries against the DataObject tables when calculating parents in CMSSiteTreeFilter
Merge pull request #1056 from stojg/issue/cms-1049

BUG: Delete parent page, child pages cannot be found anymore
NEW Adding CMS sitetree filter to see the current 'live' site

This adds a new filter that will show a content editor what the current published site-tree
looks like for a visitor. This helps when there is a lot of drafted content that get included
in the default filter 'All Pages'
Merge pull request #1063 from stojg/pull/published-pages-cmsfilter

NEW Adding CMS sitetree filter to see the current 'live' site
#1067 No updateEditForm hook on CMSFieldAddController::getEditForm()
Tests for https://github.com/silverstripe/silverstripe-framework/pull/3347
Merge pull request #1070 from tractorcow/pulls/3.1/framework-3347-test

Tests for https://github.com/silverstripe/silverstripe-framework/pull/3347
Merge pull request #1068 from jakxnz/1067-cmsfieldaddcontroller-geteditform

#1067 No updateEditForm hook on CMSFieldAddController::getEditForm()
Update translations
BUG Fix search range for asset filter
Merge pull request #1071 from tractorcow/pulls/3.1/fix-asset-search

BUG Fix search range for asset filter
BUG Fix CMSMain::getList to correctly respect filter result
Fixes #1064
CMSSiteTreeFilter refactored to allow SS_List of filtered pages to be returned
Merge pull request #1069 from tractorcow/pulls/3.1/fix-cmsmain-getlist

BUG Fix CMSMain::getList to correctly respect filter result
Fix changed pages filter to match SiteTree's 'MODIFIED' label
Merge pull request #1072 from madmatt/pulls/changed-pages

Fix changed pages filter to match SiteTree's 'MODIFIED' label