boxes 7.x-1.0-beta7

Bug fixes:
* Issue #1417162: Cancel button causes AJAX error. by nielsonm: Cancel button causes AJAX error
* Fixed warning when additional_classes is not set in custom box
* Issue #1370056: Additional CSS classes not saved by bjalford: Additional CSS classes not saved
* Issue #1199442: Fatal error: Class 'boxes_box' not found in boxes.module by bastnic | muriqui: Fixed Fatal error: Class 'boxes_box()' not found in boxes.module

Improvements:
* Remove all boxes from block table during uninstallation
* Issue #1351322: Move Cancel and Revert/Delete buttons in the 'actions' group on block edit page by mariancalinro: Move Cancel and Revert/Delete buttons in the 'actions' group on block edit page
* Issue #1394064: Allow for inline editing of empty boxes by jec006: Allow for inline editing of empty boxes
* Clarified box field descriptions
* Issue #1358352: Show the box edit form inside a pop-up by Adam S: show the edit form inside a pop-up
* Issue #1093550: Replace "Edit" text with Contextual Links: fix contextual link for boxes in panels
* Issue #1361936: perform some text filtering on plugin titles by greggles: Add some filtering on author
* Issue #1330126: Add option for a box type class to define the whole boxes edit form by e2thex: Added option for a box type class to define the whole boxes edit form
* Issue #1245282: Alternative simple box by tirdadc, e2thex: Fix simple box when WYSIWYG is enabled through CKeditor

This version is needed for Entity Boxes.