rewrite filteReddit.arrayContainsSubstring's into easier-to-read if's
filteReddit.arrayContainsSubstring sanity check that array contains rows
filteReddit.arrayContainsSubstring converts searchString to regexp if it resembles a regexp

i.e. /pattern/flags
better sanitizing on exceptString
filteReddit.arrayContainsSubstring -renamed obj to filters
filteReddit.arrayContainsSubstring uses filteReddit.filters(type) to fetch filters array
rename filteReddit.arrayContainsSubstring to filtersMatchString
whoops ctrl+h
preprocess filteReddit filters
fix filterDomain - wrong option name
fix "have filters for this type changed since preprocessed?" sanity check
fix applyTo reference
toggle SRStyleToggle visibility when login popup is opened
assign a random number to elements and select .cover-overlay
nightmode: Add styling for p tags in Markdown, simplify style rules

Fixes #1825.
Merge pull request #1827 from mc10/night-mode

nightmode: Add styling for p tags in Markdown, simplify style rules
Merge pull request #1820 from erikdesjardins/observe-element-toggle

Toggle SRStyleToggle visibility when elements are toggled
refactor colorCommentScore presets
stop gifv expandos overlapping content (take 2)
single point of return for filteReddit.filterMatchesString