Fix for virtualenv support - fixes #2328, fixes #2297, resolves #2319
typo fix
Fixes rvm_prompt_info() in lib/rvm.zsh
Returns false when rvm is not found.
Returns false when rbenv is not found.
Adds chruby_prompt_info dummy function.
Joins ruby prompt files and adds ruby_prompt_info.
Refactors ruby_prompts.zsh
new faster SVN plugin
Adds all other dummy implementations.
Adds documentation.
Renames the file to prompt_info_functions.zsh
Fixes RPROMPT in af-magic.zsh-theme
Report the SVN need upgrade

This happen when subversion 1.7+ is used on a repository created with subversion up to 1.6
Inline `parse_svn` to avoid leaky state

As noted in review, `in_svn` is not properly reset to false. This is better anyway to not leak state.
Heavy refactor of svn-fast-info
No need to eval in rvm_prompt_info!

Just activate word-splitting.
Added further cleanup and svn status information
Renamed the methods of this script
Renames main plugin function to `svn_prompt_info`