When scanning system drives for installed SDKs, default SDK version to 5.0 when no SDK version info is available; also updated SDK properties dialog to correctly display SDK version string.
bin.includes = META-INF/,\
xmlunit1.0.jar,\
tools/,\
testsupport.jar
jars.compile.order = testsupport.jar
source.testsupport.jar = src/
output.testsupport.jar = bin/