UnitTest: Tweak output format for assertions
UnitTest: Tweak output format for assertions

Used to be "blah blah <font color="red">FAIL</font>", now "FAIL: blah blah".
This reads much better in text. Colorized HTML output should use the
passed/failed properties to determine passing and failing.

foam-framework/foam,mdittmer/foam,jacksonic/foam,jacksonic/foam,mdittmer/foam,jacksonic/foam,jlhughes/foam,foam-framework/foam,jacksonic/foam,jlhughes/foam,foam-framework/foam,jlhughes/foam,foam-framework/foam,jlhughes/foam,mdittmer/foam,foam-framework/foam,mdittmer/foam