get rid of two tests that don't make sense
Update javadoc to specify non-null payload for datagrams
javadoc fixes
enable more output for easier debugging of tests
merge of '3cd63a1366e2ca171fb8c348927047e0c0b7393d'
     and 'a461c087d600d3fa0b5da2085d1dd97aff721d44'
add installer/resources to the classpath for eclipse and junit task
	do not use hardcoded filesystem path in junit test 
	(test still fails for different reason)
Fix test and make it actually test something