broke out amino acid position from molecular change

* closes #724
Merge branch 'staging' of github.com:WormBase/website into staging
Issue #654

Squashed commit of the following:

commit afdeefaf3e342d578c56637137454133d6bffa3b
Author: JD Wong <jdmswong@wormbase.org>
Date:   Wed Mar 20 18:08:39 2013 -0400

    Fixed minor model change, rewired Feature.flanking_sequences a bit.

    Forced flanking sequence view onto one line
Gene page - Reagent
* fetch multiple labs for antibodies/transgenes
* fix #978
Clean up Gene.pm