add SoundCenterApplication to provide a main function to run the client
as standalone java application
add change setGlassPane() to work with JFrame
change AppletStarter to App and use seperate Starter classes for applet
and standalone application
fix master volume control not working for biome-, world- and global
players
reuse object to be for memory-efficiency
change type of volume variable to int because for midi the value van be
higher than 127
change message for missing udp-packets
remove debug log call