Changed gitignore to match the behavior I wanted but I'm not sure it worked I had to "git add -f" the wanted file...
removed "smartindent" option because according to the vim wiki it is not so great with custom indentation
changed tab key behavior: now only using hard tabs i.e. only spaces!
changed background color of scolarized theme to light
commented out the upsetting highlight every time the line exceeded 80 characters. I'm now running pep8 with python files to verify
changed prompt and added in comments the possibility to load powerline for zsh