Added a note on how to build GCC 4.8 with MacPorts.
Added notes regarding project categorization on SourceForge.
Added notes regarding project creation on SourceForge.
Added notes regarding Git remotes for new projects.
Added a note regarding Common Lisp project directory structure.
Added a note about Common Lisp implementation feature conditionals.
Added a note on how to install various Common Lisps with MacPorts.