- new test cases to cover new payload with different versions
- exit status of 2 when duplicate is detected
- tighten up other test cases
- fix bug in sqlite_exec_int64()
- adding a bundle using an existing manifest with an incorrect payload should
fail with an error
- adding a bundle using an existing manifest to update the payload to a new
version should succeed
- improve format of "dna rhizome list" output to one bundle per line
- new execute() option: --exit-status=N
equivalent to assertExitStatus --stderr '==' N
- new executeOk() function, shortcut for execute --exit-status=0
- Put common utility functions into testdefs.sh
- Add abspath() and realpath() functions to test framework
- Test framework now executes all tests with working directory in a temporary
directory, to avoid pollution of caller's working directory
- Improve test log verbosity
- Name test log files by test script name
