Change input com port filter to not put messages on the internal bus if they are filtered out.
Added new boolean to configuration file, LegacyInputCOMPortFilterBehaviour. Default is false or "0" in config file. This means the new behaviour will occur, i.e. input messages that are filtered will be dropped.

Changed output to NMEA debug window to show red messages for those on input that have been filtered and dropped. Changed the legend to cover this.
Modified definition of g_b_legacy_input_filter_behaviour to have a comment to allow commiting the change and creating a diff file without whitespace changes
Updated message window to show DARK RED for messaged dropped from input data stream. Added legend for RED messages
Changed colours on the NMEA Debug window to match wxColourDatabase.
AMBER -> SIENNA
DARK RED -> MAROON
Merge remote-tracking branch 'origin/master' into input-port-filter

Conflicts:
	src/TTYScroll.cpp
	src/TTYWindow.cpp
	src/multiplexer.cpp

Fixed some colours not displaying correctly
Remove color.htm & color-2.8.12.htm files
Merge pull request #184 from jongough/input-port-filter

Input port filter