Use proper quotes for all the command related files and other minor cleanup

Proper quotes are " for strings that will eventually be read by a human and ' for everything else
Remove all trailling whitespace
Remove /banredirect
Style fixes in /banip
Spaces around operators and === instead of ==
Put `"" +` in front of string contactions starting with a variable
Space after `function` for anonymous functions
Merge pull request #854 from kotarou3/quote-fix

Style related fixes and other minor edits