QPID-5305: Make legacystore fully initialise buffers to avoid undefined
  disk file contents (this silences a complaint from valgrind)
NO-JIRA: Fix odd whitespace
NO-JIRA: Remove unneeded include path mangling

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1539509 13f79535-47bb-0310-9956-ffa450edef68
QPID-5306: Improve c++ tests some more:
Add options to run_test script:
 --working-dir  - run the test in this directory
 --build-dir    - set the top of the build tree
 --source-dir   - set the top of the source tree
 --python       - run a python test
 --start-broker - start/stop broker before and after test
 --broker-options - allow non default broker options

Remove a bunch of now obsolete testing related scripts

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1539510 13f79535-47bb-0310-9956-ffa450edef68