grc: python 2.6 compatibility fix
qtgui: accounted for MSVC having _finite() instead of std::isfinite()
grc: snap-to-grid (WIP)
grc: one preferences handler for all bools
grc: toggle action and mod1 modifier for snap-to-grid
grc: fix block height
cmake: fix typo in FindUHD.
cmake: add compiler flag only if the compiler supports it
cmake: remove verbose messages from UseSWIG.
Merge remote-tracking branch 'gnuradio-wg-grc/grc_snap_blocks_to_grid'
Merge remote-tracking branch 'michaelld/fix_typo'
Merge remote-tracking branch 'gnuradio-wg-grc/grc_py26_compat_fix' into maint
Merge branch 'maint'
cmake: backport parallel build fix to maint branch
cmake: add parallel build fix to gr_modtool template
Merge branch 'maint'
cmake: fix FindUHD.cmake to work with UHDConfig*.cmake, not FindUHD.cmake, since that's what UHD will be installing.  UHDConfig* is a more robust way to find packages, and works with default CMake internal paths.
grc: Reloading blocks forces reload for all open flow graphs.
grc: Reload marks page as modified only if an error occured during import (i.e. ports no longer exist)
grc: adding version information to flowgraph files using XML processing instructions