Merge branch 'next' of http://gnuradio.org/git/gnuradio into next
qtgui: added ability to set width and label of curves in time plots.

Also moved all menu classes to a form_menus.h to make them more easily accessible by other forms.
qtgui: adding a stand-alone frequency domain plot form.
qtgui: stand-alone FFT plot can handle multiple signals.
Merge branch 'master' into next
qtgui: added ability to set line style and add markers.
qtgui: adding ability to start/stop running time plots.
qtgui: made display form and display plot base classes to handle duplicated functions.

Forms and plots for each type of graph inherit from here now to make things cleaner.
qtgui: added qtgui_freq sink for reals and GRC files for freq sinks.
Merge branch 'master' into next
Merge branch 'master' into next
fcd: update to use new gr-filter blocks
Merge branch 'next' into wip/filter-rm-next
Merge branch 'master' into next

Conflicts:
	gnuradio-core/src/lib/general/CMakeLists.txt
qtgui: adding a stand-alone constellation plot form with menus.
qtgui: adding PSD and constellation static plot tools.
fft: adding a malloc for doubles.

In core for master, also exporting symbols for use externally.
qtgui: using volk to handle conversion/decomposing float/complex to double buffers.

Adding an unaligned 32fc_deinterleave_64f_x2 volk kernel to support this.
Merge branch 'master' into next
Merge branch 'next' into wip/filter-rm-next

Conflicts:
	gnuradio-core/src/lib/swig/CMakeLists.txt