add creating new release guide
fixes for gitlab restore with non-standard backup and repo dirs

These fixes will allow a restore of gitlab when the backups and
repositories directories are in non-standard locations (ie sub-dirs
of gitlabhq).  Also allows the restore to be run from script
overriding the need of a user to confirm the rebuild of the
authorized_keys file.
enforce secure gravatar urls when Gitlab.config.gitlab.https is set
addresses issue #4156
when there are large number of members of in a team, for me 260+

From:
[2013-06-01 00:55:01]   Rendered team_members/_team_member.html.haml (206.9ms)
[2013-06-01 00:55:01]   Rendered team_members/_team.html.haml (54479.2ms)

To:
[2013-06-02 02:40:36]   Rendered team_members/_team_member.html.haml (2.1ms)
[2013-06-02 02:40:36]   Rendered team_members/_team.html.haml (1412.6ms)
Fix postgres error when displaying network graph.

fix #4149
Correction to restore expected current directory
500 error on showing not existed commit fixed
Selectable deploy keys contain master projects
Read init script recipe from Rails.root path. Fix #4174

Signed-off-by: Axilleas Pipinellis <axilleas@archlinux.gr>
Authorize all teams to admin: fix 500 error on showing team page.

500 error was occured in the following steps:

1. user1 creates new team "team1".
2. Assign team1 to project1.
3. Sign in as admin. This admin is not a member of team1.
4. Open project1 team setting page (/project1/team).
5. Click "team1" link in "Assigned teams" area.
6. 500 error.

Fixed this issue.
Contributors graphs feature for GitLab

Created tests and refactored some code along the way

Added stat graph util spec, refactored code

finsihed up tests and refactors

finsihed up tests and refactors
Merge pull request #4212 from karlo57/feature/graphs

Contributors Graph
Style a bit a person section in graph
Fix new snippet tab highlight. Added new entries to changelog
Its better to load graph with ajax since it requires ~10 seconds for bigger projects to finish up
mention network graphs author in cahngelog
design pages now uses the COLOR_SCHEMES

This unifies the code color-scheme code and makes
adding new schemes a little easier.
This commit got lost https://github.com/gitlabhq/gitlab-recipes/commit/76ba45246e93e9c764580fe54ccfe38da751afbe
Restyle snippets
Fix abort gitlab:app:check

When the file that pointed git bin_path in gitlab.yml dose'nt exist,
bundle rake gitlab:app:check would be aborted.

refs #4205