I added a command to clear the terminal, since I like to keep my terminal looking clean and Ctrl-L didn't work for me since it was probably intercepted and ignored. It's currently bound by default to l since it's unused and familiar from Ctrl-L.
adding clear command
Merge remote-tracking branch 'upstream/master'
ignore dependency .d.* files
Merge branch 'master' of https://github.com/tchajed/pianobar