Major code cleanup. Merged OGR/OGR-P2 implementation and modified cores
Specific code moved out of ogr.cpp and simplified settings
Added a technical comment about the 'missing' byte
Improved PPC cores
64-bit OGR core (yet unused)
New 64-bit feature flag for PowerPC
Unified OGR/OGR-P2 implementation
Revised error handling (OGR/OGR-P2)
Removed some obsolete conditionals
Updated to the new OGR code base
Bumped version to 2.9009.494
provide inline assembly version of __CNTLZ for MSVC
add char casts to eliminate warnings on Visual Studio.NET
allow clients to be built with OGR-P2, but without OGR classic
add final linebreak
add u32 casts to eliminate warnings on Visual Studio.NET
fix mismatch pack/unpack pair around structure.
reimport new files
use new ogr-64.cpp core on AMD64 processors
remove bogus COMP_LEFT_LIST_RIGHT implementations for now