* Allow logging to be suppressed via logDisable() and logEnable().
* Added more flexibility in initializing and cleaning up after modules and tests.
* testResult() suppresses logging and reports exceptions.
* testException() allows messages to be matched with regular expressions.
* Refactor name/locations of common modules that setup test environments.
This option allows pgBackRest to validate page checksums in data files when checksums are enabled on PostgreSQL >= 9.3. Note that this functionality requires a C library which may not initially be available in OS packages. The option will automatically be enabled when the library is present and checksums are enabled on the cluster.
* Make the code more modular and object-oriented.
* Multiple Docker containers can now be created for a single test to simulate more realistic environments.