natRuntime.cc (insertSystemProperties): Set gnu.gcj.runtime.endorsed.dirs.

libjava:
	* java/lang/natRuntime.cc (insertSystemProperties): Set
	gnu.gcj.runtime.endorsed.dirs.
	* Makefile.in: Rebuilt.
	* Makefile.am (ordinary_java_source_files): Added
	HelperClassLoader.java.
	(AM_CXXFLAGS): Define GCJ_ENDORSED_DIRS.
	* gnu/gcj/runtime/VMClassLoader.java (VMClassLoader): Extends
	HelperClassLoader.
	(init): Use addDirectoriesFromProperty.
	* gnu/gcj/runtime/BootClassLoader.java (BootClassLoader): Extends
	HelperClassLoader.  Use addDirectoriesFromProperty.  Handle
	gnu.gcj.runtime.endorsed.dirs.
	* gnu/gcj/runtime/HelperClassLoader.java: New file.
gcc/java:
	* gcj.texi (libgcj Runtime Properties): Document
	gnu.gcj.runtime.endorsed.dirs.

From-SVN: r97207