Added expando for Clyp uploads (http://clyp.it)
Adding check for title link to prevent duplicates

Support for Clyp links was just added by Embed.ly. They are being
processed by Reddit natively, which caused double expando buttons to
appear.
Merge pull request #982 from nathanjones/add-clyp-exando

Add expando for Clyp audio uploads (http://clyp.it)