Handle multipage frames copy
Virtual Console: fixed Buttons background color on Windows
Show Manager: allow to stretch or loop EFXs and RGB Matrices when changing the duration
Updated translations (UI)
Show Manager: simplified Show Items menu actions code

Updated translation (UI)
Merge pull request #358 from plugz/vcframe-fix-multipage-copy

Handle multipage frames copy
Show Manager: it is now possible to add an existing Chaser

Shorten the changelog a bit...
Merge branch 'master' of github.com:mcallegari/qlcplus
Merged and updated changelog