Bump copyright date to 2013.
Improve buffer handling for io.read().
OSX: Add support for Mach-O object files to -b option.

Thanks to Adam Strzelecki.
PPC/e500: Fix lj_vm_floor() for inf/nan.
Fix capitalization of 'Xbox'.
Update changelog.
RELEASE LuaJIT-2.0.1
RELEASE LuaJIT-2.0.1 (fixed)
Fix memory access check for fast string interning.
Properly fix MSVC intrinsics for older versions.
Allow changing *.dll/*.lib name in msvcbuild.bat.
ARM: Fix cache flush/sync for exit stubs of JIT-compiled code.
MIPS: Fix cache flush/sync for JIT-compiled code jump area.
Add missing GC steps for io.* functions.
Fix rotate definitions for variable shifts.
DynASM: Improve validation of local backwards relocations.
FFI: Fix snapshot substitution in SPLIT pass.
FFI/x86: Fix register allocation for 64 bit comparisons.
Fix spurious red zone overflows in machine code generation.
Fix jump-range constrained mcode allocation.