Prevent selectors from exceeding CalendarStrip's height.

Left/right selector responsive sizing limits to container height. 
Fix WeekSelector shouldComponentUpdate criteria for size prop updates.

Author: peacechen

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-native-calendar-strip",
-  "version": "1.2.2",
+  "version": "1.2.3",
   "description": "Easy to use and visually stunning calendar component for React Native",
   "main": "index.js",
   "directories": {

src/CalendarStrip.js

@@ -482,6 +482,7 @@ export default class CalendarStrip extends Component {
     let selectorSize = Math.round(dayComponentWidth / 2.5);
     let height = this.props.showMonth ? monthFontSize : 0;
     height += this.props.showDate ? dayComponentWidth : 0; // assume square element sizes
+    selectorSize = Math.min(selectorSize, height);
 
     this.setState({
       dayComponentWidth,

src/WeekSelector.js

@@ -37,7 +37,7 @@ class WeekSelector extends Component {
     delete _nextProps.iconComponent;
     delete _props.iconComponent;
 
-    return JSON.stringify(_props) !== JSON.stringify(_nextProps) &&
+    return JSON.stringify(_props) !== JSON.stringify(_nextProps) ||
           this.props.iconComponent !== nextProps.iconComponent;
   }