Completely remove old .vim directory

Starting over for a fresh install.
Add monokai colorscheme for vim

Source: https://github.com/sickill/vim-monokai/commit/3103dcb247
Remove a lot of cruft from .vimrc
Add .tmux.conf

I'm still not a huge fan of the colors or the status bar, but it's a
work-in-progress for now.
Add vim-pathogen

Source: https://github.com/tpope/vim-pathogen/commit/b9fb0dfd81
Remove unused configs

This includes:
* .Xresources : old xterm colors
* .conkyrc : DWM status bar contents
* .latemkxrc : latexmk config to reload xpdf after generating a document
* .oh-my-zh/themes/gallifrey-mod.zsh-theme : old zsh theme
* .xbindkeysrc : keybindings for mpd play/pause within dwm
* .xinitrc : launches dwm with some initial setup
* .xpdfrc : xpdf config specialized for viewing LaTeX docs
* .zshrc : old zsh config
* dwm_config.h : DWM configuration
Remove cruft from .gitconfig