* java/net/DatagramSocketImpl.jav
	(peekData): New method.
	* java/net/PlainDatagramSocketImpl.java
	(peekData): New method.
	* java/net/natPlainDatagramSocketImpl.cc
	(peekData): New method.
	* java/net/URLConnection
	(getPermission): New method.
	(addRequestProperty): New method.
	(getRequestProperties): New method.
	(guessContentTypeFromStream): New method, not really implemented.
	(URLConnection): Added/updated documentation.
	(connect): Added/updated documentation.
	(getURL): Added/updated documentation.
	(getContentLength): Added/updated documentation.
	(getContentType: Added/updated documentation.
	(getContentEncoding): Added/updated documentation.
	(getExpiration): Added/updated documentation.
	(getDate): Added/updated documentation.
	(getLastModified): Added/updated documentation.
	(getHeaderField): Added/updated documentation.
	(getHeaderFields): Added/updated documentation.
	(getHeaderFieldInt): Added/updated documentation.
	(getHeaderFieldDate): Added/updated documentation.
	(getHeaderFieldKey): Added/updated documentation.
	(getContent): Added/updated documentation.
	(getInputStream): Added/updated documentation.
	(getOutputStream): Added/updated documentation.
	(toString): Added/updated documentation.
	(setDoInput): Added/updated documentation.
	(getDoInput): Added/updated documentation.
	(setDoOutput): Added/updated documentation.
	(getDoOutput): Added/updated documentation.
	(setAllowUserInteraction): Added/updated documentation.
	(getAllowUserInteraction): Added/updated documentation.
	(setDefaultAllowUserInteraction): Added/updated documentation.
	(getDefaultAllowUserInteraction): Added/updated documentation.
	(setUseCaches): Added/updated documentation.
	(getUseCaches): Added/updated documentation.
	(setIfModifiedSince): Added/updated documentation.
	(getIfModifiedSince): Added/updated documentation.
	(getDefaultUseCaches): Added/updated documentation.
	(setDefaultUseCaches): Added/updated documentation.
	(setRequestProperty): Added/updated documentation.
	(getRequestProperty): Added/updated documentation.
	(setDefaultRequestProperty): Added/updated documentation.
	(getDefaultRequestProperty): Added/updated documentation.
	(setContentHandlerFactory): Added/updated documentation.

From-SVN: r57049