Rename the project to 'git undo'

[muszek]

It's just a suggestion.

1. It's self explanatory. 'gitjk' is not (not sure if I get it right, but it's taken from "I was joking, undo it", right?).
2. Lots of people search for "git undo". I compared it in Google Trends with a search phrase I know gets over 10k searches per day and "git undo" has approx 8% of that (and rises quickly - http://www.google.com/trends/explore#q=git%20undo ). 1000 users per day sounds nice, doesn't it?