bump rev number

ato.yaml.j2

@@ -1,4 +1,4 @@
-ato-version: ^0.1.8
+ato-version: ^0.2.0
 builds:
   default:
     entry: elec/src/{{caseconverter.kebabcase(name)}}.ato:{{caseconverter.pascalcase(name)}}