Added Arthur Chan to AUTHORS

Thanks for the translation, Arthur.
Changelog entry for traditional Chinese translation
Changed htmlEquals to wymEquals and added a DOM testing option to it.

Altered existing tests that were DOM testing to use it.
Refactored `wymEqual`'s optional arguments into an object.

Altered existing tests that use `wymEqual`'s optional arguments
accordingly.
Removed superfluous argument in jQuery call inside `wymEquals`.

I don't know what this is. Tests do not fail without it. Perhaps, a relic.
Ignore tests that are failing in IE7 & IE8 after refactor of `wymEqual`.

An issue regarding these failing test has been filed, issue #498.
Comment out a function because it was put inside an `if` temporarily.

See issue #498.
Fix: Some tests were skipped in browsers they were meant to run in.
Fix: Function was commented out when it was required in some browsers.
Some code style corrections.
Removed the normalization of the expected HTML from `wymEqual`.
Changed occurrences of `<br>`, `<br >` and `<br />` to `<br/>`.

Have not dealt with `br` tags with attributes.
Fixed some tests' expected HTML strings that had unclosed `li` tags.
Sorted attributes in strings of expected HTML in unit tests.
Styled self closed elements in unit tests to as `<tag />`.
HTML normalizer now styles self closing elements as `<tag />`.
Fix: some tests' expected HTML strings were missing `tbody` elements.
Fix: Some unit tests' string of expected HTML was missing a closing `li`.
Fixed typo in one of the unit tests' string of expected HTML.
Fix: A test had carriage returns and newlines in it's HTML strings.