Merge master remote (bryan's changes) and local
Major: Major retool of task_sessions view and model (added :date field,
changed migrations) Sorting also works.
Not finished adding :date attribute to task_sessions.

Added date field to task sessions model and misc fixes to view.
Added flash notices and warnings to views by default.

Fixed gem file to use "thin" instead of "webrick" (default rails s web server). It has less errors and is better. Run bundle install and it will be used in lieu of webrick by default

Upgrade to Rails from 4.0.0 to 4.0.1 which fixes the "default date" problem (had no default date before) in the task_sessions.new form.

minor commit. squash it.

Task Sessions index and sorting is complete with css styling. Major
refactoring of code.
Minor fix with css so the navbar doesn't cover anything