fix a cute copypasto in SExpDesignUI::figure_binsize_item()
use enum class in place of bool for some args of cairo_draw_signal
CSource::put_region_smpl() are not const, obviously
sink some common code in libsigfile
properly rename metrics::pages() to steps(), correctly compute steps()
CSource::get_signal_* sz arg means 'last sample', so size()-1
remove redundant safety check in CEDFFile::put_region_smpl()
CTSVFile now functional
remove --samplerate option from agh-profile-gen
this is not going to be 1.0 yet
not sure about headers in _SOURCES