change rails gem version and ruby version
migrations were invalid for postgres, change :uniq to :unique, regen schema
active record had a whinge about using #all, recommending replacing it with #load
update environment for rails 4
move to rails4 routes
rails 4 uses a different secret token hash name
use strong_params where relevant and fix or add tests.
Merge pull request #295 from wadtech/rails4

Rails 4
Added rails_12factor for dpeloying to heroku
add spec for gravatar url and remove lazy init
add gittip button
Merge pull request #296 from despo/add-gittip-button

Add gittip button
rails 4 uses asset-url instead of the other stuff it used to, or sass-rails, I'm not sure who to blame.
Rebuilt Gemfile.lock file
Merge pull request #297 from wadtech/rails4-assets

rails 4 uses asset-url instead of the other stuff it used to
Merge branch 'master' of https://github.com/andrew/24pullrequests
Merge pull request #298 from jasnow/master

Rebuilt Gemfile.lock file