(1) add support to create/delete/revert vm snapshots on running vms with QCOW2 format
(2) add new API to create volume snapshot from vm snapshot
(3) delete metadata of vm snapshots before stopping/migrating and recover vm snapshots after starting/migrating
(4) enable deleting of VM snapshot on stopped vm or vm snapshot is not listed in qcow2 image.
(5) enable smoke tests for vmsnaphsots on KVM
Move the localization resource files from Java Properties format to JSON Key-Value format
Change the Transifex sync script to handle JSON resource files instead of Properties files
Update the README
Remove old version from the Transifex configuration file
Remove unused gen-l10n.py script and update the ui/pom.xml to remove the execution of this script