digital: Tidying formatting of constellation.cc
digital: Minor refactor of constellation object.
Merge branch 'grhack13' of https://github.com/trondeau/gnuradio into grhack13
digital: Fixing bugs from earlier commit in constellation.cc
Merge branch 'master', remote-tracking branch 'origin' into grhack13
Fixed bug in calculation of derivative filter taps.
Merge branch 'master' into grhack13

Conflicts:
	gr-blocks/grc/blocks_tag_debug.xml
wip: progress on burst receiver. Tested OTA successfully.

Need to work on tag location through the PFB clock sync.
wip.
Merge branch 'qtgui_time_trigger' into grhack13

Conflicts:
	gr-digital/include/gnuradio/digital/constellation.h