Following up on r1034362, use project names instead of full paths for the generated external projects.
Following up on r1034362, use project names instead of full paths for the
generated external projects.

* build.conf
  (svn_locale,
   zlib,
   __CONFIG__): Drop path from external-project.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion