Removed whitespace and added dtools/bin/remove-whitespace as a tool to do this in the future.
The sed script was provided by Moritz Fischer.
new fm detector added based on FIR derivative detector. Stereo sep better than pll based one and more efficient. Tweaking probably needed, usrp_wfm_rcv_fmdet added to demo
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10847 221aa14e-8319-0410-a670-987f0aec2ac5