Move management of options collection to the spec object
Use predefined options for universal, cxx11, and 32-bit options

:universal and :cxx11 are now handled directly, so we don't need to
always convert symbols to strings in this method. Symbols should be
reserved for future use.
fix build issue with clang
add link to upstream bugreport
yconalyzer: add 1.0.4 bottle.