Make build system less annoying (#8) r=bryner

 - Place objects in the appropriate directories, instead of filling up
   the root directory.
 - Remove namespace macros, which made maintenance troublesome and which
   created a dependency on config.h in public headers
 - Skip useless Fortran checks at configure time


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@8 4c0a9323-5329-0410-9bdc-e9ce6186880e