remove redundant cuc specs
migration added to adapt event to handle discussion activity

Change events to become activit for motion, vote and discisssion.
Delete redundant code for creating a motion from the groups page.
Change event calls to happen in the models instead of the controllers.
delete redundant history partial
description edited added to activity

major refactor into an activity_item partial
discussion css changed to contain activity
archive comment model and controller specs written
simplify motion controller

change event model back activity
dont display archived comments
comment migration for archived at
ajax activity update

merge with master
comment archived conditions added

discussion title edited added as activity
all specs passing
fix failing cuc spec for edit discussion description
mark failing cuc specs as pending
merge with master
delete comment cuc spec added
added spec for ensuring last_comment at is reset after archive!
align buttons in ie8
Add description to new discussion email
discussion title history added

re-format activity items
change css class
failing specs after discription added to new-discussion mail
changed @previous_motion back to @selected_motion