Rename ~/Github directory to ~/Code

New system, new directory
Remove Android SDK path

Don't need this atm
Remove git completion for Bash

Not needed since Zsh is my default shell
Switch git:// URLs to https://

When in certain public wifi areas, git:// isn't supported.
Remove .netrwhist

Not sure why this was added.
Checkout branches in git submodules

For some reason, these were in detached HEAD states
Personalize OSX settings

A little ME time, ya know?