EPIC...some enhancements

[mipmip]

Are you open for PR's for the following:

• tooltips with mouse 1,2,3 functionality
• preference panel
  • STRING configure "right click command for directories" (currently gnome-terminal....)
  • BOOL show/hide badge in indicator with number of dirty repo's
  • BOOL show changed files (I like to see changed repo-dirs only)
• config-file:
  • allow dir's glob e.g. ~/code* (I have prefixed all my git containing dirs with c e.g. cClient1 , cGnomeProjects)
  • dirs -> parent_dirs
  • new key repo_dirs for single repo_dirs in stead of parent dirs