modtool: Fixed a bug in makexml for int-type io signatures
grc: switch execute action icon to media_play
grc: renaming 'Build' menu to 'Run'

Suggested by Mike Ossmann
cmake: make sure our local CMake Modules path comes first.
cmake: fix FindUHD.cmake to first check to see if UHD installed its own version of FindUHD, and if so use it; if not, revert to current behavior.
Merge remote-tracking branch 'martin/modtool/bugfix' into maint
Fix for #647 - GUI Tabs do not switch on WX GUI Scope sink channels on OSX

With this patch, the bug is not showing anymore. It was only tested by
me on Mac OS X - not on Linux nor other platforms.
The possible regressions introduced by fix should be limited to the
notebook chooser forms only.
Merge remote-tracking branch 'skoslowski/grc_exec_icon'
Merge remote-tracking branch 'gnuradio-wg-grc/grc_rename_build_menu'
Merge branch 'maint'
Merge branch 'master' into next