Removed BOOST_VMD_VARIADICS in favor of BOOST_PP_VARIADICS.
Changed to modular Boost directory structure.
Changed to mudular git directory structure
Use modular Boost directory structure.
Use modular Boost directory structure
Removed unused detail headers.
Changed directory to vmd from variadic_macro_data for naming consistency.
Documentation changes and slightly simplified detail changes for the empty macro.
Updated docs and read me file.