add some initial decorators
require draper
convert the time_ago helper to the created_at_time_ago decorator method
use the created_at_time_ago decorator method
add the socializer module
decorate @activities
decorate @notifications
remove use of time_ago
add the socializer module to the specs
add TODO comment to be explicit about delegation
allow rails command to be run so we can run generators
since object returns activity.object returns the original object we can do activity.object.object

care flu because we can end up with code like this:
activity.object.object.object.content

/cc #205
Merge branch 'master' into initial_decorators
Merge pull request #206 from socializer/initial_decorators

Initial decorators