Made markAsSafe*() methods chainable
BBCodeMonkey: added {ANYTHING} as an alias for {TEXT} plus the ability to add more aliases for unfiltered content. Also made public some regexps that power users might want to alter
Removed outdated doc
Added Parser::addTagPair(), a convenience method for creating a pair of tags
Slightly tweaked the detection of URL-safe regexps to get slightly fewer false-negatives
Added support in Generic for replacements using a pair of tags rather than a single self-closing tag
Fixed README