Added Icons to the Events and Commitments tabs
Add X button to tabs other than the two main calendar display tabs
Added X buttons to close tabs
Merge branch 'dev' of https://github.com/CS3733Team1/wpi-suite into feature/fixUpTabs
Merge branch 'feature/fixUpTabs' of https://github.com/CS3733Team1/wpi-suite into feature/fixUpTabs
Madeclosable  tab icons and close buttons work at the same time
Merge branch 'dev' of https://github.com/CS3733Team1/wpi-suite into feature/fixUpTabs