21251 - Windows absolute paths are not identified correctly

This commit allows paths to include the windows directory name
when checking if a path is absolute.
21251 - Windows absolute paths are not identified correctly

changelog
20714 - Remove the rpchelptemplate and helptemplatedir settings

This commit removes the rpchelptemplate and helptemplatedir
configuration settings. The logic for discovering a template's
path has now been moved to the Util class, which will firstly
check the config directory, then fallback to /etc/mcollective.