SWIG/Python testsuite: more development on the utilities.
SWIG/Python testsuite: more development on the utilities.

* subversion/bindings/swig/python/tests/utils.py:
  (): Simplify imports.
  (Temper.alloc_repo): Rename to alloc_empty_repo.
  (Temper.alloc_known_repo): New function.
  (Temper._file_uri_for_path): Turn into a global function and rename to
    file_uri_for_path.

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