Added FileReader and FileWriter.
 - Added button Delete (+server side support)
 - Fixed (de)serialization to use the right canal ids
 - Refactored a little bit.
Adding draft for the logging system.
Using Logger.
Reordered the included js files.
Moved the call to loadLibraries here. It's done only when all library data ajax calls are successful.
Changed the size/color, added title rect.
Disabled loading libraryies here.
Adding logger, fixed the infrastructure.
Added some code that computes view pixel ratio and applies it. This needs to be reviewed.