- Current 'git_subtree' command and its direct dependents renamed to   'git_subtree_viaMerge'. - Added new functionality to save the 'git_subtree' state, along with   a prototype for a restore-function.
- Current 'git_subtree' command and its direct dependents renamed to
  'git_subtree_viaMerge'.
- Added new functionality to save the 'git_subtree' state, along with
  a prototype for a restore-function.


git-svn-id: 0ff1ad7656aa80338884e77fe20f8695ecd5d14c@2884 92e5ae4a-8afd-0310-8b33-eaebc6dd6768

jpweiss/tools,jpweiss/tools