- rel 4; back to original ecj.jar because new causes errors like:

$ gcj -C Hello.java
Exception in thread "main" java.lang.NoClassDefFoundError:
org.eclipse.jdt.internal.compiler.batch.GCCMain
   at gnu.java.lang.MainThread.run(libgcj.so.14)
Caused by: java.lang.ClassNotFoundException:
org.eclipse.jdt.internal.compiler.batch.GCCMain not found in
gnu.gcj.runtime.SystemClassLoader{urls=[file:/usr/share/java/ecj.jar],
parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}}
   at java.net.URLClassLoader.findClass(libgcj.so.14)
   at java.lang.ClassLoader.loadClass(libgcj.so.14)
   at java.lang.ClassLoader.loadClass(libgcj.so.14)
   at gnu.java.lang.MainThread.run(libgcj.so.14