FIX: reverted the usage of gConfig as Operations helper cannot retrieve
information from /System..
Added getSites, getStorageElementSiteMapping
Use getStorageElementSiteMapping helper function
Bug fixed in checkActiveReplicas()
Merge pull request #1307 from ubeda/FIX_v6r7_JobManifest

FIX: JobManifest
v6r7p12
Conflicts resolved after merging with rel-v6r7
Merge pull request #1308 from atsareg/fix-v6r7

StrategyHandler - use Resources helper
Conflicts resolved after merging with rel-v6r7
Merge remote-tracking branch 'upstream/integration' into integration
v6r7p12, v6r8-pre6
Merge remote-tracking branch 'upstream/integration' into integration