v1.9.0: add mso223725
v1.9.1: +mso172931, reimplement SOUP.ready() with better isolation, misc. tweaks
v1.9.2: better answer loading for mso172931
v1.9.3: run mathjax on review answers, catch ajax hook errors
v1.9.5: +mso224533, +SOUP.forEachTextNode(), double-check that location.hostname is an SE site
Y U NO WORK hookEditPreview()?!?
v1.9.6: +mso224411, comment out spammy hookEditPreview() logging
disable mso224533 in mobile view
v1.9.7: +mso224328, fix variable leakage on Opera
v1.9.8: +mso224233, +mso223866
v1.9.9: +mso224628
v1.9.10: +mso203405, better beta site detection
v1.9.11: +mso210165
v1.9.12: +stats1987
v1.9.13: +workplace2437
v1.9.14: tweak mso172931 answer html simplification
v1.9.15: +skeptics2636, tweak selector for stats1987
release v1.9.15 as v1.10.0