Update Git

Ubuntu 14.04 official deb repository has 1.9 version of Git. It is too old and have to be updated.

http://askubuntu.com/questions/579589/upgrade-git-version-on-ubuntu-14-04

sudo apt-get remove git
sudo add-apt-repository ppa:git-core/ppa
sudo apt-get update
sudo apt-get install git
git --version