Fix UI bugs. reviewed by redding.

@@ -309,6 +309,11 @@ export default function community(platform) {
 								getSceneStyle={(props) => {
 									return this.navPushStyle(props);
 								}}
+								onBack={(navigationState) => {
+									let dismissKeyboard = require('dismissKeyboard');
+									dismissKeyboard();
+									Actions.pop();
+								}}
 							/>
 
 							<Scene

@@ -79,8 +79,10 @@ export default class SubjectPost extends Component {
             if (this.boardInView) {
                 return;
             }
-
             let kbdHeight = height - event.endCoordinates.screenY;
+            if (kbdHeight == 0) {
+                this.setState({replyState: ReplyState.replyNone});
+            }
             this.boardHeight = kbdHeight>0?kbdHeight:250;
             this.boardSelectionHeight=kbdHeight;
             let targetHeight = height-navbarHeight-0.5- kbdHeight;
@@ -602,7 +604,7 @@ const styles = StyleSheet.create({
         flex: 1,
         paddingLeft: 10,
         paddingRight: 10,
-        paddingTop: 9,
+        paddingTop: 3,
         paddingBottom: 9,
         color: 'black',
         height: 33,