Refactored git-dev and git-done.
Restructured git-* execution.
Added new extensions:
* git-branch-points
* git-branch-status
* git-churn
* git-conflicted
* git-create-branch
* git-delete-branch
* git-divergence
renamed:
list-extensions is now git-story
extend-with     is now git-story-extend
Updated readme documentation.
Updated script docs.
Renamed file.
Added git-neck.
Renamed git-branch-points to git-trail.
Updated README
Added git describe output to tag-release, to help with version naming
Command list update, readme merge
Config var name change.
Updated README
Update README.md
Update README.md
removed redundant output
Merge branch 'git_refactor' of github.com:buren/git-story into git_refactor

Meged.
Merge pull request #39 from buren/git_refactor

Refactored git-dev and git-done.