Correctly assign class to fallbackImg object

I guess I used the wrong attribute last time. should be className and not class.
Correctly assign class to fallbackImg object

Used the wrong attribute before. Should be className instead of class.
Merge pull request #1882 from markekraus/patch-5

Imgur and Gifyoutube fallback Image Alignment Redux
utils: Fix indentation
re-ordered the RESissues submit text template

more obvious prompts: moved to the top, put ??? on its own line
diagnostic info below the fold.  hopefully this will help cut down on people deleting all of it, but won't prevent people from deliberately changing it.
rewrote bug submit guider to ask for specific items
consistent spacing on ??? prompts
bleh preformatted text
Merge pull request #1892 from andytuba/submitissues-gussy

Submit Issues minor rewrite
added known issues and postanissue link to submitissue guider footer
4.5.4 migrate: remove undefined from filteReddit.options.keywords.fields['unlessKeyword']
refactor filteReddit.filtersMatchString's excludeString / searchString checks

excludeString is now part of skipCheck
"what kind of comparison (if any)?" is now one long if-elif-elif
sanitize notificationThreshold better to preserve 0 values

also allow >100% threshold to avoid any notification.. goofy, but why not.