Removed manual installation of magit
Corrected loading of magit after installing from ELPA
Removed ELPA from the tracking
Updated ignores - to ignore elpa directory
Added easier buffers prev/next navigation

Using tabs-like bind COMMAND+[ and COMMAND+] when using mac OS
Conditioned mac binds customization

Added a condition that loads the mac OS specialized customization
depending on the OS
Cleaned the "theme" section. Made it simple and defined only colors
Added org-mode's repository