FIX EZP-21834: allow overriding/extending ezpublish.siteaccess.match in yml files.
Implemented EZP-20816: Added new index on ezcontentobject_attribute
Merge pull request #576 from joaoinacio/EZP-21834_siteaccess_match_override

FIX EZP-21834: overriding/extending ezpublish.siteaccess.match in config.
Fix EZP-21845: Trashed locations still in persistence cache & accessible in API
Add todo on transaction handling in regards to Persistence cache
fix ezxml link class attribute rendering
Fixed EZP-21854: Default ezgmaplocation_field template defines a wrong height
Merge pull request #582 from lserwatka/EZP-21854

Fixed EZP-21854: Default ezgmaplocation_field template defines a wrong height
Merge pull request #579 from ezsystems/cacheTrashHandler

Fix EZP-21845: Trashed locations still in persistence cache & accessible via API
EZP-21861: fixed leading slash when creating under root node
EZP-21548: implement slots for clearing user info cache
Merge pull request #583 from ezsystems/fix-EZP-21548-role-assignment-cache

EZP-21548: Clear role assignments cache when dealing with locations
EZP-21719: implemented Depth criterion
Updated: more precise exception message
EZP-21804: create untranslatable field copy from translation value
EZP-21874: test limitation on draft Content as well
EZP-21874: handle draft Content
EZP-21874: added unit tests for ParentContentTypeLimitationType
Merge pull request #572 from ezsystems/fix-EZP-21804-copy-untranslatable-field

Fix EZP-21804: Duplicate key in ezcontentobject_attribute when creating new draft with untranslatable field
Merge pull request #591 from ezsystems/fix-EZP-21874-ParentContentTypeLimitationType-draft-support

EZP-21874: ParentContentType Limitation does not work correctly with draft Content