Set sorting to True on Priority
Enable sorting on AR Priority sortKey in AR Listing
Added Priority to bika_catalog
Added upgrade step
Added BatchUID and indexer to AR in bika_catalog
Changed batch contentMethod to use catalog query and return ARs by BatchUID sort by sort_on field
Removed commented out stuff
Added Priority adapter to analysis
REfactored PriorityIcons adapater - move it to adapaters
Added priority to Analysis listing on Worksheet
Secured priorityicon adapter fail nicely
Added priority on worksheet (highest of all contents) and included it in
worksheetfolder listing
Merge branch 'develop' into features/i1235

Conflicts:
	bika/lims/upgrade/configure.zcml
	bika/lims/upgrade/to3034.py
Merge branch 'develop' into features/i1235

Conflicts:
	bika/lims/browser/batch/analysisrequests.py
	bika/lims/upgrade/configure.zcml
	bika/lims/upgrade/to3035.py
Added priority icons to all analysis request templates
Added priority on worksheet (highest off all contained ARs)
Show worksheet priority icon in listing and views
Merged 'develop'.
Finish i1216
Merged pr/1260 (i1235)
Finish i1235