Build issues due to missing rf12_restore/rf12_setBitrate/rf12_setFixedLength

Compiling this sketch needs the 'rf12mods' branch of jeelib:

In your ~/sketchbook/libraries/
$ git://github.com/jcw/jeelib.git
$ cd jeelib
$ git checkout -b rf12mods remotes/origin/rf12mods

And restart the arduino ide

[SevenW]

I can add that instruction to the README. Thanks for providing the linux way of git.