Test: Remove unused code

Ref https://github.com/jquery/qunit/pull/634#discussion_r17050275
Logging: Add runtime to moduleDone

Add runtime to moduleDone
Minor cleanup of other logging runtime

Fixes #645
Test: Synchronize hooks order

The 'synchronize' functions now also accepts arrays of functions

Fixes #647
Closes #650
Reporter: Ensure markup is valid XHTML

Build: Ensure markup is valid XHTML (entities and empty elements)

Fixes #645