clean up indentation.
make test exception text easier to identify.
Disable spurious stack trace printing during test.
Merge branch 'ARI-3822'
Merge branch 'ARI-3879'

Conflicts:
	wayback-core/src/main/java/org/archive/wayback/replay/SelectorReplayDispatcher.java
Merge remote-tracking branch 'internetarchive/master' into ari-3985
Make mimetype detector recognize case-insensitive doctype prolog.
Merge branch 'ari-3985' into ait-qa