Require Mac OS X 10.7 or later.  Build against libc++.  Build Python tools against Python 2.7.  Install files via "Copy Files" build phases.  Added FRAMEWORK_SEARCH_PATHS, MW_SCRIPTING_DIR, and MW_PYTHON_DIR to Development.xcconfig.  Removed some unused files.  Minor changes to build_supporting_libs and Xcode project files.
Updated installer to require Mac OS X 10.7 or later
Minor improvements to MATLAB tools code
Build MATLAB tools against MATLAB R2011a
Use BEGIN/END_NAMESPACE_MW throughout the core sources
Added a couple missing includes
Run MATLAB tools tests against all installed MATLAB versions
Hide symbols by default when compiling.  Added MW_SYMBOL_PUBLIC macro for making a given symbol visible; used by BEGIN_NAMESPACE_MW to make all symbols in a given namespace block public.  Made symbols in stx namespace and glew.h public.  Improved how Xcode project files specify frameworks and libraries to link against.  Link all frameworks, apps, and plugins against libboost_system (which is required by Boost.Thread).  Don't build lcms, since we don't use the DevIL functions that depend on it.  Don't link MATLAB tools against libmx and libmex; instead, let the linker find the required symbols at runtime.  Removed 32-bit MATLAB path from MWClient's DYLD_LIBRARY_PATH.  Minor improvements to Xcode project files.
build_mworks now skips MATLAB tools if the required MATLAB version is not installed
Added some missing settings to example configuration files