qtgui: accounted for MSVC having _finite() instead of std::isfinite()
blocks: Fixed some broken license headers
uhd: Fixed minor issue with kwargs in amsg_source
grc: only fix old message connections if both ends are valid
Merge remote-tracking branch 'martin/uhd/bug682' into maint
The functions in wavfile.cc are publicly exported.
Merge remote-tracking branch 'ncorgan/qtgui/msvc_bugfix' into maint
Merge remote-tracking branch 'gnuradio-wg-grc/maint_grcwg' into maint