validation for renaming stages
no longer must click on text to rename stage
fixed red border in stage creation
Merge branch 'feature-persist-workflow-and-stage' of github.com:JustDuckItAll/wpi-suite into feature-persist-workflow-and-stage

Conflicts:
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/views/NewStageView.java