Update to XMP SDK CS6
Merge branch 'adobe-sdk' into cs6-integration

This bring the CS6 version of the SDK to Exempi
Adapt the build system.
GIF support is currently disabled.

Conflicts:
	XMPCore/source/XMPCore_Impl.hpp
	XMPFiles/source/FileHandlers/AVCHD_Handler.cpp
	XMPFiles/source/FileHandlers/MPEG4_Handler.cpp
	XMPFiles/source/FileHandlers/P2_Handler.cpp
	XMPFiles/source/FileHandlers/PSD_Handler.hpp
	XMPFiles/source/FileHandlers/PostScript_Handler.cpp
	XMPFiles/source/FileHandlers/SonyHDV_Handler.cpp
	XMPFiles/source/FileHandlers/UCF_Handler.hpp
	XMPFiles/source/FileHandlers/XDCAMEX_Handler.cpp
	XMPFiles/source/FileHandlers/XDCAM_Handler.cpp
	XMPFiles/source/FormatSupport/PSIR_Support.hpp
	XMPFiles/source/XMPFiles.hpp
	XMPFiles/source/XMPFiles_Impl.cpp
	XMPFiles/source/XMPFiles_Impl.hpp
	samples/source/common/DumpFile.cpp
	samples/source/common/LargeFileAccess.cpp
	samples/source/common/LargeFileAccess.hpp
	samples/source/common/Log.cpp
	source/XMPFiles/FormatSupport/ID3_Support.hpp
	source/XMPFiles/XMPFiles.cpp
	source/XMP_LibUtils.cpp
Updated Copyright info and NEWS
expat.h and zlib.h proxies are needed.
Remove XMPScanner.cpp that no longer exist.
Put back GIF definition until the GIF Handler is ported to the new API
delete / new [] mismatch.
Rationalize the Exempi change to XMPCore.
Fix initializer order warnings
Fix make dist
Fix for build on Mac: conditionals, boost headers, etc.
Update to XMP SDK CC 2013.06
Update to XMP SDK CC-2013.06.

Merge branch 'adobe-sdk' into cc-2013.06-integration

Conflicts:
	XMPCore/source/XMPMeta.cpp
	XMPCore/source/XMPMeta.hpp
	XMPFiles/source/FormatSupport/TIFF_FileWriter.cpp
	XMPFiles/source/PluginHandler/XMPAtoms.h
	public/include/XMP_Const.h
	samples/source/DumpMainXMP.cpp
	samples/source/DumpScannedXMP.cpp
	samples/source/XMPCoreCoverage.cpp
	samples/source/XMPFilesCoverage.cpp
	samples/source/common/LargeFileAccess.cpp
	samples/source/common/globals.h
	source/EndianUtils.hpp
Fix build system for the newer SDK
Fix distcheck.

Rename conflicting Makefile in build.
XIO::SplitLeafName coudln't deal with ./file.jpg (leading dot)
Updating GIF handler to te new API.
Upgrade XMP SDK to cc 2013.06

Merge branch 'cc-2013.06-integration'