Plugins: propagate a return value on openInput and openOutput

This is to be able to display an error message to the user if something went wrong with the physical device
Updated translations (UI and DMXUSB changed)
Build: Added define to totally disable debug messages.

This dramatically reduces a release build size
Fixed test units for InputOutputManp and VCFrame
Updated catalan translations on ui and dmxusb
Merge pull request #339 from sbenejam/master

Updated catalan translations on ui and dmxusb
Plugins/DMX: Removed wrong code: IO lines start from 0
Fix ADJ event bar heads
2D monitor: Fix wrong behavior wehn trailing zeroes in the universe are not sent
2D monitor: fix heads computation when column is 1