Updated test results: Ruby markup served as text/html

These tests check whether and how a user agent displays ruby markup in XHTML 1.0 that is served as text/html (without CSS help).

Tests were conducted on later versions of Firefox, Opera and Safari browsers, and the Firefox browser with a later version of the ruby add-on by Jeroen Ruigrok van der Werven. The latter now passes all tests for simple and complex ruby as expected. There was no change for the three former browser setups.