Add hgrc

Update .gitignore accordingly
Add screenrc

Update .gitignore accordingly
Add zshrc and accompanying files

Update .gitignore accordingly
Update gitconfig with some settings I forgot
Add installation script install.py

Update .gitignore accordingly
Update README.md to mention install script
Add colors section for zsh config

Update zshrc to source that new file

This new config file is from oh-my-zsh and makes 256 colors more sane
Update zsh's git config file to fix a prompt issue
Update prompt with absolute colors (using 256 colors)

Now prompt will be colored correctly independent of terminal. Hopefully.
Add colortestprompt (makes the prompt list/show all possible colors)

To use it, just source it
Update prompt to split it into parts for more readability
Update prompt to try to fix git-prompt problem
Update LSCOLORS in zsh exports for better readability
Update exports to remove LSCOLORS and update aliases for gls

Now must have coreutils installed on OSX for this to work error-free,
as I've aliased ls to gls, which is included in coreutils (installed via
homebrew)
Update prompt to make embedded functions work properly
Update README.md for requirements section

Right now only requirement is that on OSX, coreutils must be installed
Move ls="gls" alias to the zsh mac config file
Modify zsh aliases, exports, and mac to get ls colors working
Add dircolors file
Reorganize zsh config files

Update .gitignore accordingly
Update zshrc to handle new tree structure