Bug: send sync message when reactivating sync
MD-237: KDU 7.2.1
Merge remote-tracking branch 'upstream/develop' into develop
MD-239

Add 'Day Before Yesterday' option for Smart Albums
MD-241

NSAutoreleasePool for very large number of files
MD-242

Support UTF8 string for ROI description box, instead of ASCII 127 only
Option to turn OFF ROI Undo Queue
MD-243
MD-244
Merge remote-tracking branch 'upstream/develop' into develop
Reslicing: RGB is supported
Database: not required independent database on main thread
DB merge: use refreshObject instead of mergeChangesFromContextDidSaveNotification
Database: better multi-threaded multi-contexts behavior
Better support for finding existing DicomImage when they contain multiframes
Database merge policy: NSMergeByPropertyStoreTrumpMergePolicy
Multithreaded images set function
ROI Informations box: rounded background box
ROI Informations box: radius
Retina screen support: same sensivity for mouse position