Translate new strings
Spanish Translation webaccess
Merge pull request #341 from kripton/german

Translate new strings (german)
Merge pull request #342 from tornel/translation

Spanish Translation (webaccess)
Doxygen: new module DMX monitor
Docs: Slightly reword Click&Go entry in concepts
Doxygen, 2nd attempt
Updated Webaccess Catalan translation
Merge pull request #344 from sbenejam/master

Updated Webaccess Catalan translation
Restructured UI folder to make it easier to find files
Show Manager: started to split graphics items

Next step: base class ShowItem + subclasses (sequence, audio, video)
Show Manager: added ShowItem class + subclasses: SequenceItem, AudioItem and VideoItem

Refactored signals and slots to remove redundant code