Some cleanup, and update to new mozilla source. In particular:

- Removed #if 0 code in genproxy.c and elsewhere.

- Used jlong_* macros for portability (and defined in xpjava.h if not
  elsewhere)

- Commented out calls to PR_Atomic{In,De}crement in JSSample.cpp, and began
  to use "official" XPCOM macros.

- Removed Java interfaces for test components; will be autogenerated by
  xpidl and/or genproxy.

- Extend genproxy to generate interfaces.

- Updated README with note on the jni.h problem


git-svn-id: svn://10.0.0.236/trunk@47409 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/java/xpcom/src/xpjava.h

@@ -71,6 +71,11 @@ extern nsID*    ID_GetNative(JNIEnv *env, jobject self);
 extern void     ID_SetNative(JNIEnv *env, jobject self, nsID* id);
 extern jboolean ID_IsEqual(JNIEnv *env, jobject self, jobject other);
 
+#ifndef jlong_L2I
+#  define jlong_L2I(_i, _l) ((_i) = (_l))
+#  define jlong_I2L(_l, _i) ((_l) = (_i))
+#endif
+
 #ifdef __cplusplus
 }
 #endif