Removes omniture delay on <button> clicks, removes CSS transition on tra...

Adds another case for not having an Omniture pre-delay when the clicked element is a button - i.e. is an "internal" UI control such as trailblock roll-up/roll-out.

Removes CSS transitions from trailblock roll-up/roll-out. The max-height fix for the lack of explicit heights - as are required for the transition - causes the animation to be ineffectual.

My first pull request. 
Treat it with scepticism. 
(It passed all the tests though...)