Oliver Tappe 8ff44a4329 Fix and improve code for determining Haiku revision from a git repo
* break out most of the CopySetHaikuRevision action into a separate script:
  determine_haiku_revision
* fix git branch detection such that it'll actually work for local branches (thanks to 
  Andreas Färber for the hint)
* add some sanity checks


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41520 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-05-15 22:45:43 +00:00
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