Consistent Header across the app

- Set up each screen to have the same header style using the fa icons in
place of the gravatar image used for users
- Fixed bootstrap includes to have button groups
- Removed more unneeded imports
Task View Update in progress

- Checklist is now in a panel
- Assigned User panel complete (?)
- Hours worked panel complete (?)
Task View completed!

- New panel layout is finished
- Hours Worked is now shown
- Hours Worked form works properly. Button to show the form only appears
if the user is the user assigned.
Checkboxes for Checklist Items now persist!
Fixed tiny image bug on the task page

- Comment box now shows current user avatar
- Comments show commenter avatar

I managed to swap them on accident...oops!
Merge pull request #32 from 343-Epoch/task-view

Task view updated to panel layout