add rlp encoding for new proposal

app/components/simple-voting/AddPoll.js

@@ -5,11 +5,27 @@ import CardContent from '@material-ui/core/CardContent';
 import PollManager from 'Embark/contracts/PollManager';
 import TextField from '@material-ui/core/TextField';
 import Button from '@material-ui/core/Button';
+import { map } from 'lodash';
+import rlp from 'rlp';
 import { withStyles } from '@material-ui/core/styles';
 import { withFormik } from 'formik';
 
 const oneDayinBlocks = 5760;
 
+const singleChoiceDef = (question, options) => {
+  const d = [
+    new Buffer(question),
+    map(options, function(o) {
+      return new Buffer(o);
+    })
+  ];
+
+  const b = rlp.encode(d);
+  const rlpDefinition =  '0x' + b.toString('hex');
+
+  return rlpDefinition;
+}
+
 const styles = theme => ({
   button: {
     margin: theme.spacing.unit,
@@ -74,7 +90,7 @@ const AddPoll = withFormik({
     const endTime = currentBlock + (oneDayinBlocks * 90);
     addPoll(
       endTime,
-      asciiToHex(description)
+      singleChoiceDef(description, ['YES', 'NO'])
     )
       .send()
       .then(res => {