atsc: Updating atsc python folder to new style.  Was missing __init__.py
video_sdl: Fixing bug so that __init__.py goes in correct directory.
sphinx-docs: Updating sphinx docs for move of gnuradio.window to gnuradio.fft.window.
gr: Adding pubsub.py to CMakeLists.txt so it gets installed.
digital: fixes for SNR ests.

set_history: you keep using that word. I do not think it means what you think it means.
Merge branch 'maint'
docs: adds protection from generated files of components not configured.

Also removes a couple warnings in generating docs.
Merge branch 'master' into next

Also updating to make changes in maint/master to next.

Conflicts:
	docs/doxygen/CMakeLists.txt
	gnuradio-runtime/lib/pmt/CMakeLists.txt
	gr-digital/lib/digital_impl_mpsk_snr_est.cc
	gr-digital/lib/digital_mpsk_snr_est_cc.cc
	gr-digital/python/qa_mpsk_snr_est.py
video-sdl: fix typo in .pc file
Merge branch 'maint'
Merge remote-tracking branch 'reynwar/next_minorbugs' into next
Merge branch 'master' into next
docstrings: Include class documentation into SWIGed make function's docstrings.
digital: Fixed incorrect documentation in constellation_receiver_cb.
digital: Minor documentation improvements.
sphinx-docs: Minor updates to sphinx documentation.
digital: OFDM frame equalizer now as an option to work w/o len tag
digital: fix some issues w/ header parser/gen; QA, wrong OFDM symbol number calculation, bug that always returns PMT_NIL
digital: merge from master
Merge remote-tracking branch 'reynwar/next_minorbugs' into next