Better test_jvml

Takes arguments so you can specify which classes to test. Also has some
messages about each test
bootclasspath to self for CCLib

Required a dummy Throwable class for some reason
Trimmed the fat in Test.java

I kinda want to get rid of this entirely and reimplement all these
"tests" in more specific classes...
Error on unimplemented instruction, implemented C6
Little bit of tweaking the test_jvml
Fix getMethodNames
RedstoneTest a little better
Simplified String constant loading