[DO NOT MERGE] 551 multiple languages

Hi @pld @royrutto, looking for some feedback here, rather than a request for merge.
(1) Wrote some tests!
(2) Where should I put these [json](https://github.com/onaio/zebra/compare/551_multiple_languages?expand=1#diff-989f6d52dcb2e40b133c3f28440c7a14R10) form [fixtures](https://github.com/onaio/zebra/compare/551_multiple_languages?expand=1#diff-989f6d52dcb2e40b133c3f28440c7a14R15)?
(3) Any ideas why I'm [getting](https://travis-ci.org/onaio/zebra/builds/36040719#L407) `java.io.FileNotFoundException: Could not locate ona/utils/form_test__init.class or ona/utils/form_test.clj on classpath: `? I know this is a test for a `.cljx` file; I decided to start the tests in `clj` rather than trying to figure out `cljx` all at once, but its strange that its the test file it is complaining about not finding... anything that seems obvious to you guys?