Merge pull request #16 from juanrubio/master

Added another way to diplay a commit's diff.

Added a couple of git log cheats

Added git clean cheats

Added various add, status and ls-files commands

Merge pull request #15 from Benoth/master

Minor consistency fixes

Update git archive function

Merge pull request #14 from sevaivanov/master

Lines 206 to 207 are duplicates of 212 to 213.

Merge pull request #13 from pathway27/patch-1

typo in README.md

Update LICENSE

Update README.md

Merge pull request #12 from 0xAF/master