[gitlab] Upgrade to GitLab 6.6

Nice changelog!
https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG#L1-33
We must update LDAP params (filters), and add param for nginx max_body.
[spec] Oups… update unit-tests for gitlab 6.7
Merge pull request #132 from sbadia/feature/upgrade-6-7/sbadia

Upgrade to GitLab 6.7