Merge pull request #1 from fcamblor/log-oneline-fix

Added --pretty=oneline to `git log`
images are taken from oh-my-git-gh-pages repo
number_of_logs is calculated perfoming log with --pretty=oneline option. Thanks to @fcamblor
one liner installation instructions for mac and ubuntu
no references to .bash_profile in the README.md
Provided additionnal color (pink) for branch name