Extending Runners API to include GET /runners call

  * The GET /runners call retrieves a list of all runners registered
    on the Gitlab CI instance.
Merge pull request #299 from alakra/extend_runners_api

Extending Runners API to include GET /runners call
Allow selecting git fetch or git clone for builds. Send build timeout with API
Version go to 3.3.0.pre
Runner page with recent builds
Improve runner page
Fixed recent builds for runner page
Update rails
Runner is shared between all projects now unless it is assigned to any of them
Add admin area
Assign runner id to build at start. Allow update only of running builds
Add admin links to nav. Hide runner tokn on build page
Remove runner views from user area
Remove old controllers
Hide runners stuff from setup guide. Show runner warning only for admins
Hide runners info at Dashboard
title to Dashboard
Remove unecessary td
Remove deploy keys stuff. We will use http cloning
Build basic auth for Build#repo_url