Added stub files for Catalan translation
Fixture Editor: don't allow smart people to cheat the name check
Fixture Editor: fixed weight and lens values save/load
Fixture Editor improvements:

- added missing channel name check on edit
- assign a progressive number on copy/paste a channel
Update german translations
Merge pull request #284 from kripton/german

Update german translations
Translate german strings in remaining .ts files
Merge pull request #285 from kripton/german

Translate german strings in remaining .ts files
Cuelist: Reuse code in chaser() method
Cuelist: fix chasers with random order
VCCuelist: code cleanup
Signed-off-by: sbenejam <sbenejam@gmail.com>
Docs: It's not needed to edit profiles so that Multipage frames work
RGB Matrix: add button to reset end color
RGB Audio spectrum: fix crash when group height == 1
Scene Editor: fixed crash when a group used by a Scene has been removed
Fixture Editor: fix commit 333bfa98: allow the name to stay the same as before

reported by cingulingu in https://sourceforge.net/p/qlcplus/discussion/development/thread/ef306f5c
Fix ADJ Sweeper Beam definition - RGB matrices don't work with White channels yet.

See https://sourceforge.net/p/qlcplus/discussion/general/thread/4b54ea6a
OLA: fixed OSX requirement to avoid manual tweaks
Audio: fixed crash on OSX happening on end of playback