Multiple warnings when byte-compile-file

[ZelphirKaltstahl]

This might not be a big problem right now, I think you should know though, that when byte-compiling the workgroups.el, emacs warns:

workgroups.el:1410:30:Warning: `flet' is an obsolete macro (as of 24.3); use
either `cl-flet' or `cl-letf'.

I don't know elisp well, so I don't know if I can just go into the file and do a replace of the flets in there. There is also the following warning:

workgroups.el:55:1:Warning: cl package required at runtime