Multiple frontend support (#110)

* Initial multiple frontend support

* Removed unnecessary require()

* Moved styles/images out of common

app/javascript/styles/common.scss

@@ -0,0 +1,5 @@
+// This makes our fonts available everywhere.
+
+@import 'fonts/roboto';
+@import 'fonts/roboto-mono';
+@import 'fonts/montserrat';