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.
Merge pull request #496 from mightyiam/dom_testing

Standardize DOM testing