Add rulers left of and below spectrogram.
treea2d2d0b2fc3d8a9a52cc6b9d32eb4642b07cac57
-rw-r--r-- 17987 COPYING
-rw-r--r-- 82 Makefile.am
-rw-r--r-- 312 README
-rw-r--r-- 544 configure.ac
-rw-r--r-- 14047 waterfall.c
-rw-r--r-- 12603 waterfall.glade