core: fix default vector value in GRC wrapper for vector source
blocks: fix XML wrapper for gr::blocks::complex_to_real
blocks: fix XML data type in gr::blocks::plateau_detector_fb
Merge branch 'maint'
Merge branch 'master' into next

Conflicts:
	grc/blocks/gr_vector_source_x.xml
wxgui: remove debugging code
blocks: fix copy and paste error
docs: updated docs for logging levels with use of log4cpp.
Merge branch 'master' into next
core: adding ability to set config params and save config file.

Saving over-writes ~/.gnuradio/config.conf with all sections/options.

Save new prefs file with "gr.prefs().save()".

Can also view all prefs: "print gr.prefs().to_string()"
grc: fixes problem with order of defining message ports vs. data ports.
affinity: fixes a problem with using gr types (for uint8 vectors) in setting processor affinity.
Merge branch 'maint'
Merge branch 'master' into next
core: fixed affinity example block names changes.
core: fixed block names conflict from next.
Merge branch 'maint'
Merge branch 'master' into next
core: and fixing again after merging up...
atsc: missing dep on gr-fec.