Dashboard API changes
Api changes
review comment changes
Merge branch 'master' of https://github.com/dhanasiddharth/Dashboard

Conflicts:
	src/main/java/org/hpccsystems/dashboard/controller/SidebarController.java
	src/main/java/org/hpccsystems/dashboard/dao/impl/DashboardDaoImpl.java
	src/main/java/org/hpccsystems/dashboard/services/DashboardService.java