* A test command can now signal to btest that even if it fails subsequent test commands should still run by returning exit code 100. btest-diff uses this to continue in the case that no baseline has yet been established.
* New test option TEST-REQUIRES for running a test conditionally. See the README for more information.
0.222
* Two new helper scripts for spawning processes in the background. See README for more information.
* btest-diff can now deal with files specificied with paths.