Added Cell Renderer
fixed backlog bug
Merge remote-tracking branch 'origin/team1-dev' into team1-dev-icons
Got icons working
Created icons for use with the tree
Minor changes to icons
Icon improvement
Added functionality to display the Currently logged in user and their
permission level.

Contributor: Chris Hanna
Fixed the bug where creating a child requirement threw a 'no such method error'. I just deleted the imports and put them back. Somehow that worked.......
fixed the bug with being set to backlog when created
Merge remote-tracking branch 'origin/team1-dev' into team1-dev
cleaned the code in displaying current permission status

Contributor: Chris Hanna
fixed BS errors
Merge branch 'team1-viewPermission' into team1-dev
Clicking on a parent Requirement no longer closes node
Merge remote-tracking branch 'origin/team1-dev' into team1-dev-icons
Tree icons now work based on priority
Merge remote-tracking branch 'origin/team1-dev-icons' into team1-dev
Deleted test icons
Made it so, when creating a requirement, Iterations that have an end date
before the current date will not even show up (though the backlog will still
be there)