constification
* changed to C++
* can handle all Java return values now
* support for most Java types
* java.lang.String returned as CLIPS STRING
added print function using toString
added JavaObjectValue on C side
added JavaObjectValue to java lib
deleted generated JNI .h file from git
Java objects now returned from eval call, as JavaObjectValue
header cleanup
static methods and fields now work (instance fields should work, too,
but untested)
fixed static fields