Complete integration of stability checking

[axch]

• Should move the reusable modules to bdbcontrib/src and document
  them for the users also
• Should parameterize the scripts and make Jenkins builds
  • Parameterization: main function that takes programmatic
    parameters, another function that chews up commandline arguments,
    if main check that invokes it.
  • A smoke test build that acts as a crash-level integration test of
    all this stuff, possibly from within check.sh depending on how
    slow it is
  • A full build that produces reusable .bdb artifacts, certainly
    outside check.sh
    • Would be good if Jenkins would also serve the plots
• Convert the metadata format (record_metadata) into something machine
  readable, like json
  • Is there a standard human-readable version of json for printing to
    screen?

[axch]

Addressed by #67