gitolite-3.6.12-bp155.3.7

- fix for boo#1181130
  * add nginx to group git

- update to 3.6.12:
  * mirroring terminoligy changes
  * install script can now modify #! lines when using a custom
  * 'config' user command allows for config values with spaces
  * finally added notes in "t/README" on testing http mode and

- update changes file
  * add missing info about bugzilla 1096814

- update to 3.6.11
  - fix for boo#1121570 (CVE-2018-20683)
    security issue in 'rsync' (bundle helper); see commit 5df2b81 for more
- update to 3.6.10
  - fix up boo-boo caused by previous release; see mails on list for details