* build/run_tests.py   (_run_py_test): Instead of dieing, reraise the exception if we have trouble     importing the test, in the hopes that the exception will give us better     debugging information.
* build/run_tests.py
  (_run_py_test): Instead of dieing, reraise the exception if we have trouble
    importing the test, in the hopes that the exception will give us better
    debugging information.

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