Instead of using rgb-colorvalues everywhere there now is a dictionary
with a set of colors + colorvalues so adjusting colors won't be too
annoying in the future. Also instead of creating a frame-variable for
every possible color combination there now is a function to create
frames when necessary.
The current config.py is rather messy. In order to get a nice and clean
configuration for barpyrus I decided to completely rewrite it from
scratch. For now it will only show the tags, the focused window title
and the date/time. Further functionality will be added later.
