Use the gitlabhq fork of the MySQL converter
Rebuild indexes after a MySQL conversion
Do gitlab:shell setup before seeds because we need /home/git/repositories exists

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Merge branch 'create_pg_indexes' into 'master'

Rebuild Postgres indexes after a MySQL conversion
Merge branch 'fix-install-guide' into 'master'

Fix install guide

Fix gitlab setup. DB setup must go after gitlab-shell setup. Because in seeds we need `/home/git/repositories` to exist