Fix ll alias in OSX to make sure we get human readable sizes.
Rename source folder to bashrc to support different shells.
Add 'cdf': open current folder in Finder.
vimrc: Ease handling of splits, and make searching more interactive.
Split .zshrc and use zshrc folder instead.
Change paths on OSX.
Reorganize zshrc folder.
Change .bashrc and .zshrc to support OS dependent subdirectories in their respective source folders.
zshrc: Move a few zsh aliases into OSX subdir.
Clean up bashrc folder.