blocks: fixing use of packed/unpacked from gr-blocks in QA code.
Merge branch 'master' into next
Merge remote-tracking branch 'ncorgan/channels-fix' into next
Merge branch 'master' of gnuradio.org:gnuradio
Merge branch 'next' of gnuradio.org:gnuradio into next
Merge branch 'master' into next
ctrlport: added more documentation and examples to ControlPort config file.
ctrlport: added an option to allow enabling/disable of perfcounters over ctrlport.
core: adds a function to top_block to get a list of edges as a string.

Also exports it through ControlPort.
ctrlport: wip: performance counter monitor for ControlPort.
filter: fixed synth_to_chan example using gr-analog.
Merge branch 'next' of gnuradio.org:gnuradio into next
perf mon: wip.
blocks: converted peak_detector2 and regenerate to v3.7.
blocks: removed peak_detector2 and regenerate blocks from gnuradio-core.
blocks: adding threshold, strech, and throttle to gr-blocks.
Merge branch 'master' into next

Conflicts:
	gr-blocks/grc/blocks_block_tree.xml
blocks: removing throttle, threshold, stretch from gnuradio-core.
blocks: moved transcendental block to gr-blocks.
modtool: another fix in the SWIG generating code