fixed the resizing issue for the requirements panel
When you enter an estimate now, you no longer need to hit enter to make the iteration dropdown editable. Simply typing a number will do it. I also fixed an exception that was thrown if you hit enter on an invalid estimate.
I also added documentation to the code Ned and I wrote for iteration 2. It looked confusing, so I label what everything did.

Evan Polekoff
Merge remote-tracking branch 'origin/team1-gui-adjustments' into team1-dev
Merge remote-tracking branch 'origin/team1-dev' into team1-dev