When task is closed, it now goes back to the workflow view.
Edited colors.
Max size of titles in tab labels implemented
Cards are now spaced apart
Added icons.
Merge branch 'nitpicks' of https://github.com/JustDuckItAll/wpi-suite into nitpicks
Close button added
fixed sticky removing
merge
Validating cancel tab
Add popup error handler abstract class, use that by default for errors we want to display, fix the non handled errors in stage stuff.

Conflicts:
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/views/NewStageView.java
Performance improvement by adding listeners after everything has been set/initialized. This makes it so it doesn't trigger on building the view. Authors: nmcmahon1215
Polished validation of close button
Added validation for close button and centered popup confirmation
undeprecate MockData

Conflicts:
	TaskManager/src/test/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/entitymanagers/TaskEntityManagerTests.java
add idcache test
add idcache adapter tests
test that we implement fromjson and it's static
supress unused warning in this test case
add comment to HTMLEncodeStringAdapter