Shell prompt
Show vcs revision number in prompt
Prompt format modifications and old functions throwaway
Adding vcs info actionformat
Prompt vcs info modifications

- Removed revision number showing
- Added showing vcs in use
Prompt visual tweak
Added some comments to recent changes
Rationalise dot minified version
precmd function shorter version
Old stuff removing
Added add-zsh-hook for precmd and vcs_info
Formated comments