Added property to provide a query to list schemas

grails.plugin.databasemigration.meta.multiSchemaQuery = 'SELECT nspname FROM pg_catalog.pg_namespace'

if set, this query will be run to list schemas instead of the Connection.getMetaData().getSchemas() method
Keeping log entries, just in debug so it does not polute the logs in production
Merge remote-tracking branch 'upstream/master'
Merge pull request #30 from hbfernandes/master

Added property to provide a query to list schemas