v1.13.0: +mso221304
v1.13.1: add sstatic.net to list of supported domains for mso221304
trigger mso221304 fix on post submit
v1.13.3: +codegolf959, tag https fixes in README
v1.13.4: move all HTTPS fixes together in the code
v1.13.5: s/mso/mse/g, s/meta.stackoverflow.com/meta.stackexchange.com/g
v1.13.6: +mse227975
v1.13.7: +mse230607, change fix.sites to a regexp
v1.13.8: +mse214830
v1.13.9: +mse230392
v1.13.10: +mse230370
v1.13.11: +english4719
v1.13.12: +physics5773
v1.13.13: expand physics5773, rm mse230370
v1.13.14: +skeptics2747
v1.13.15: extend mse229363 fix to all sites except those known to use MathJax
fix broken link to skeptics2747 post
release v1.13.15 as v1.14.0