Add support for npm #5
Description
As stated at NodeOS/NodeOS#67 (comment), add support to make gitkit capable to be used by npm as a valid git cli command. Needed functionality is:
- git config --get remote..url
- git rev-list -n1 master
- git checkout [something]
- git clone [param] [param]
- git clone --template=[value] --mirror [param] [param]