* Formatting
* renaming
* fixed some issues of cppcheck
* new icons
* smooth scrolling in views, stretching for few columns
* fixed start timer in updatetimer
* background colors of some LEDs
* Moved methods to cpp file (less recompilation)
* Background of icons can be changed
* refs #322, changed to index based approach for retrieving icons (faster)
* therfore: sorted icons per name, easier to keep in sync