* Improved speed, the first time cd'ing into a git repo the prompt
returns much faster (for me at least).
* Prompt is now decorated in nested folders within a git repo. No
longer check for the '.git' folder.
* git.zsh is now themable:
* git_prompt_info() now will look in the following variables for
formatting strings:
* ZSH_THEME_GIT_PROMPT_PREFIX - Prefix for the prompt (before the
branch name)
* ZSH_THEME_GIT_PROMPT_SUFFIX - The very end of the prompt
* ZSH_THEME_GIT_PROMPT_DIRTY - Displayed when the branch is dirty
* ZSH_THEME_GIT_PROMPT_CLEAN - Displayed when the branch is clean
* Updated geoffgarside, robbyrussell, and maran to work with new git
theme
* Added the Risto theme, which is very similar to a number of bash
prompts, and allows me to use zsh in with out my co-workers knowing I
have the advantage. Think of it as a ninja theme.