* java/util/zip/GZIPInputStream.java
	(GZIPInputStream): Increase buffer size to 4k.
	* java/util/zip/GZIPOutputStream.java
	(GZIPOutputStream): Likewise.
	* java/util/zip/Inflater.java
	(setInput): Merged formating with GNU classpath.
	* java/util/zip/InflaterInputStream.java
	(InflaterInputStream): Increase buffer size to 4k.
	(fill): Throw exception if stream ends early.
	(read): Merged endless-loop with GNU classpath.
	(skip): Increase buffer size to 2k.

From-SVN: r85340