To install:
git clone https://github.com/w-shackleton/dotfiles.git ~/.dotfiles
cd ~/.dotfiles
git submodule init
git submodule update
ln -s ~/.dotfiles/bashrc ~/.bashrc
ln -s ~/.dotfiles/tmux.conf ~/.tmux.conf
ln -s ~/.dotfiles/gdbinit ~/.gdbinit
ln -s ~/.dotfiles/external/dircolors-solarized/dircolors.256dark ~/.dircolors
echo '[include]' >> ~/.gitconfig
echo ' path = .dotfiles/gitconfig' >> ~/.gitconfig