Refined topology synchronization task logic and added logs
Merge remote-tracking branch 'origin/master'
Added an extra warn log in cloud controller
fixing a test failure and a fix to small comment
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/incubator-stratos
Refactored task scheduler in cloud controller
Merge remote-tracking branch 'origin/master'
Updated comment
Refactored cloud controller topology event publisher