Replace hard coded description with call to display_meta_tags
Replace hard coded description with call to display_meta_tags

This is so we can set the description more dynamically using the
meta_tags gem, but means pages without set_meta_tags set wont have
this description any more.

openaustralia/morph,openaustralia/morph,otherchirps/morph,openaustralia/morph,otherchirps/morph,otherchirps/morph,openaustralia/morph,otherchirps/morph,otherchirps/morph,openaustralia/morph,openaustralia/morph,otherchirps/morph,otherchirps/morph,openaustralia/morph