Multi-datasources with where and criteria queries (#57)

* Multi-datasources with where and criteria queries

* Display in multiple line

docs/src/docs/asciidoc/multipleDataSources/dataSourceNamespaces.adoc

@@ -23,3 +23,22 @@ zipCode.auditing.save()
 ----
 
 As you can see, you add the `DataSource` to the method call in both the static case and the instance case.
+
+You can use `Where` queries:
+
+[source,groovy]
+----
+def results = ZipCode.where {
+    code ==~ '995%'
+}.withConnection('auditing').list()
+----
+
+or `Criteria` queries:
+
+[source,groovy]
+----
+def c = ZipCode.auditing.createCriteria()
+def results = c.list {
+    like('code','995%')
+}
+----