digital: Fixed scaling bug in QAM constellations.
digital: Increase acceptable BER in qa_constellation_receiver back to prior value.
blocks: fixed MSVC compatibility issue
grc: added optional flag to pad source and sink
grc: revert changes to flow_graph.tmpl, runtime enforces this
grc: added wildcard type to pad source/sink
blocks: fix XML definitions for block tree
Merge remote branch 'jblum/grc_optional_pads'
qtgui: fixed qtgui time sink to take the bandwidth parameter to set x-axis correctly.
Merge branch 'maint'
core: fix several tag includes throughout core

Techinically this include should be the tags header which
brings in the pmt *and* the tags struct definition.
This happens to be working because the struct definition
is implicitly included by the gr_block* and subclass headers.
uhd: fix pmt tuple ref namespace issue

The pmt_tuple_ref should be prefixed with pmt:: just like all of the other calls.
I am uncertain as to why this is compiling (we are not using namespace pmt),
unless there is a hidden using namespace somewhere in a global header.
But it will be good to get the code right as a general purpose example.
Merge branch 'maint'
Merge remote-tracking branch 'benreynwar/master_constellation_scale'
digital: Add symbol output to constellation_receiver block for debugging.

Cherry-picked from a commit on 'next.' Reworked for master style.

Conflicts:

	gr-digital/lib/constellation_receiver_cb_impl.cc
cmake: Ubuntu 12.10 package support
Merge branch 'maint'
Removes some swig workaround code put in for ticket 181.

This seems to fix the import problems recently seen on 12.10 for loading gnuradio-companion (due to 'from lxml import etree' which was actually due to 'import os' causing a segfault).
analog: adding squelch_base_ff and ctcss_squelch_ff to analog.

This addresses the issues of inheriting from both gr_block and another block (squelch_base_ff, in this case).
analog: adding complex squelch base class.