fixed gcServerVars class to use MetaRouter instance rather than xHandler
added register(MetaAddress, MetaListener) quick access function to gcServerPlugin class
added new MetaAddress and MetaListener classes
added convert() function to Meta class
renamed getValueStr() to getStringValue() in Meta classes
added value() function to Meta classes
added MetaString class
fixed toString() function in Meta class
changed MetaEvent class to use new MetaAddress
added toString() function to MetaEvent class
added new MetaRouter class
added set and list commands to gcServerCommands class
removed some old commented code from gcServerCommands class