Update .gitconfig for simple push mechanism
Update .tmux.conf for pasting functionality
Add vim line wrapping for 72 chars
Revise .vimrc to use Silver Searcher by default and with Ctrl-P
Update .vimrc shortcuts for running tests
Update .vimrc background to be dark
Revise PATH settings
Remove .zshrc cruft
Add PATH for go language
Add alias for listing cores
Update fpath
Update zsh chip theme smiley and git prompt