- Required on the GitLab Rails side is mostly authentication and API related.

This reverts commit 3e991230.

# Conflicts:
#	app/models/project.rb

In 8278b763 the default behaviour of annotation
has changes, which was causing a lot of noise in diffs. We decided in #17382
that it is better to get rid of the whole annotate gem, and instead let people
look at schema.rb for the columns in a table.

Fixes: #17382

Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Create DeployKey & DeployKeysProject models. Bulding many to many relation between deploy keys and projects

Users with many projects (>100) will hit the 20 second timeout when
updating the gitolite config. This fix batches those changes into a
signle update to the file, causing an order of magnitude speed increase
which finishes well below the 20 second timeout.

Fixes gitlabhq/gitlabhq#220

  * Remove trailing whitespace
  * Converts hard-tabs into two-space soft-tabs
  * Remove consecutive blank lines