Added methods to stringify a object
Added default values and save method
Added RXTX library and native files

.dll files only work with Windows x64 and JVM x64!
Added class SerialSupport using RXTX library
Changed serialInterfaceSelected to String

index is not a appropriate format to store the selected interface
because it may change, the name will not
Using the name also as value in select
Fixed bug causing NullPointerException in server while saving
Fixed bug causing NumberFromatException
Added class to load and save settings
Using SettingsManager as Handler in Webserver