bump 0.4.0

Author: zombieJ

HISTORY.md

@@ -1,6 +1,10 @@
 # History
 ----
 
+## 0.4.0 / 2019-08-06
+
+- Support `getPopupContainer` prop.
+
 ## 0.3.0 / 2019-05-14
 
 - Support `placement` prop.
@@ -11,4 +15,4 @@
 
 ## 0.1.0 / 2019-05-08
 
-- Initial release.
+- Initial release.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "rc-mentions",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "description": "React Mentions",
   "keywords": [
     "react",