Create heat database with default character set utf-8
Create heat database with default character set utf-8

The heat-db-setup script wasn't creating the heat database with default
character set utf-8 which can cause the migrations to fail.

Closes-Bug: #1276880

Change-Id: I35861af66d70314285fa76bb148e403aeea4b654

maestro-hybrid-cloud/heat,redhat-openstack/heat,redhat-openstack/heat,steveb/heat,openstack/heat,jasondunsmore/heat,cwolferh/heat-scratch,gonzolino/heat,pratikmallya/heat,steveb/heat,dims/heat,NeCTAR-RC/heat,srznew/heat,maestro-hybrid-cloud/heat,cwolferh/heat-scratch,cryptickp/heat,rdo-management/heat,miguelgrinberg/heat,dragorosson/heat,takeshineshiro/heat,ntt-sic/heat,openstack/heat,srznew/heat,miguelgrinberg/heat,rdo-management/heat,rh-s/heat,gonzolino/heat,ntt-sic/heat,pratikmallya/heat,noironetworks/heat,NeCTAR-RC/heat,takeshineshiro/heat,pshchelo/heat,pshchelo/heat,noironetworks/heat,cryptickp/heat,jasondunsmore/heat,dims/heat,dragorosson/heat,rh-s/heat