stop unnecessary attempt to look for core templates in the app directory since both and empty string and 'core' should look into the core directory
stop unnecessary attempt to look for core templates in the app directory since both and empty string and 'core' should look into the core directory

owncloud/core,phil-davis/core,pollopolea/core,pollopolea/core,owncloud/core,pollopolea/core,pollopolea/core,owncloud/core,owncloud/core,pollopolea/core,owncloud/core