Update revision to 3.7.1git
Merge branch 'maint'
grc: add bus ports

Bus ports allow ganging together of block input or output ports into
a single display item for connection to other bus ports.
Merge branch 'maint'
Merge branch 'maint'
Merge branch 'maint'
grc: Fix whitespace issue in grc to use proper spaces

Remove all \t's to match the rest of GNU Radio
Merge branch 'maint'
cmake: Windows packages automatically include compiler runtime DLL's to remove an installation step
Merge branch 'maint'
Merge commit 'b736a6'
Merge branch 'maint'
Created atsc_rx.py and removed obsolete scripts

Several bug fixes and speedups rolled into one ATSC
decoder script. The old method included separately
launched scripts linked with named pipes, this was
tedious and slowed down decoding, so I have moved
their functionality into one flowgraph.
uhd: squashed per-channel stream support
some omissions from orig. buspot delivery
indent error fix
Merge branch 'maint'
ctrlport: Improved display handling for gr-ctrlport-monitor.
ctrlport: removed 'New Plot' toolbar button. Needs work to be useful and was actually broken.
Merge branch 'maint'