URL.java (getPath): New JDK 1.3 method.

URL.java (getPath): New JDK 1.3 method.

	* java/net/URL.java (getPath):  New JDK 1.3 method.

	* java/net/URLStreamHandler.java (parseURL):
	It is wrong to prepend '/' to the file part of a relative url.

	* java/net/URLStreamHandler.java (parseURL):
	Minor optizations - append '/' rather than "/".

	* java/net/URLStreamHandler.java (parseURL):
	Don't canonicalize "xx/.." or "./" URLs - JDK doesn't.
	We probably should canonicalize for a context-relative url, though.
	* java/net/URL.java (sameFile):  Delegate to URLStreamHandler.
	* java/net/URLStreamHandler.java (canonicalizeFilename):  New helper.
	(sameFile):  New method.  Uses canonicalizeFilename.

From-SVN: r49980