[maven-release-plugin] copy for tag git-plugin-1.2.2

[maven-release-plugin] copy for tag v1.2.1

1.2 release

Fixed log command to not have superflous path option

Created 1.1.8

Created version 1.6

Updated to 2.5 libs, changed to version 1.1.7.

2 versions in 20 minutes is not so bad

Created version 1.6

Got rid of the ridiculous atlassian dev kit

Handled case where target branch is HEAD branch and git creates branc…

…h with proper name

Fixed problem with force clean build
Added SHA1 build numbers to commit log
Added support for nice error message when requested branch does not exist

Improved unit test and decreased dependency on github.com uptime ;)