GitLab

Added my prompt theme, with a tweak to the core oh-my-zsh to support it. My git_prompt_info function not only reports the branch and dirty status, but also whether or not the branch is ahead or behind of the remote, or both. It also switches the prompt colour from green to red if the previous command exited with a non-zero value (i.e. failed).

Fixed issue #19 'Rake not auto completing'.  The stat command syntax that was being used was not correct. Or at least on my machine.  See man page for the stat command

This means we are running it after $PATH has potentially been set up,
which means it's more likely that commands like "git" will be found

Moving all zsh config options into a lib/ subdirectory to make way for some upcoming changes to directory structure and configuration options