Closes #4 - implements dismiss+prior links
Fixes #18 by implementing new title filter
Fixes #20, stops are-you-there while paused
Fixes black/white diff issue

Thanks to Antiqueight for pointing out the problem! It didn't look wrong
to me because my WP account had CSS overrides for diffs in place anyway.
move the regex that fixes #18

We don't want users deleting the css/JS page filter, and no matter how
carefully we explain it, someone would anyway -- so let's just hard-code
an append to the list.
default to 60 minute timeout
Fixes #21, pause/resume button
Merge branch 'develop' - release 0.1.0