Rename & add git aliases
Rename & add git aliases

This patch renames some of the git aliases. The main motivation was
using shorter names for the most common ones and more intuitive names
for the ones I use less and tend to forget.

JDevlieghere/dotfiles,JDevlieghere/dotfiles,Gres/dotfiles,Gres/dotfiles,Gres/dotfiles,JDevlieghere/dotfiles