Reviewed-by: alanb, chegar

Reviewed-by: alanb, sherman

Reviewed-by: chegar, ksrini

Summary: Make SYSTEM_ZLIB more flexible by using ZLIB_{CFLAGS,LIBS} and building on more than just MACOSX.
Reviewed-by: sherman, alanb

Summary: re-implemented getBytesRead/Writtten() at java level
Reviewed-by: andrew, alanb

Summary: To use GetPrimitiveArrayCritical for bye array access
Reviewed-by: bristor, alanb

Reviewed-by: xdono

6858865: Fix for 6728376 causes regression if the size of "data" is 0 and malloc returns Null for 0-length
Summary: don't throw OOME when in or out buffer size is 0 length
Reviewed-by: alanb

Reviewed-by: darcy, weijun

Summary: To use explicit lobk object.
Reviewed-by: alanb

Summary: Add sync_flush option into Deflater/DefalterOutputStream
Reviewed-by: martin, alanb

6728376: Wrong error handling in Java_java_util_zip_Deflater_deflateBytes leads to size 0 if compress fails
6735255: ZipFile.close() does not close ZipFileInputStreams, contrary to the API document
Summary: Throws OOM when malloc failed. Closes all outstanding streams when closing
Reviewed-by: alanb