Merge pull request #78 from Simon-Initiative/LEGACY-342-sync-echo-theme

sends theme choice to full preview server

Author: darrensiegel

src/main/java/edu/cmu/oli/content/controllers/DeployControllerImpl.java

@@ -207,6 +207,7 @@ private Optional<Response> getPreviewResponse(AppSecurityContext session, String
         previewUrlInfo.addProperty("orgId", orgIdToUse);
         previewUrlInfo.addProperty("orgVersion", orgVersion);
         previewUrlInfo.addProperty("redeploy", redeploy);
+        previewUrlInfo.addProperty("theme", pkg.getTheme());
 
         JsonObject userInfo = new JsonObject();
         userInfo.addProperty("firstName", session.getFirstName());