Fix a build issue

Author: Xie, Ziyu

README.md

@@ -27,7 +27,9 @@ angular2-draggable has angular directives that make the DOM element draggable an
     + provided since v2.0, requires Angular >= 6
 
 # Latest Update
-+ 2018.09.14: 2.1.3
+
++ 2018.09.17: 2.1.4
+  + Fix a build issue.
   + **ngResizable**: fix [issue #100](https://github.com/xieziyu/angular2-draggable/issues/100): Resize bounds on a draggable element inside a containment is off
 
 + 2018.08.20: 2.1.2

projects/angular2-draggable/package.json

@@ -1,6 +1,6 @@
 {
   "name": "angular2-draggable",
-  "version": "2.1.3",
+  "version": "2.1.4",
   "author": "Xie, Ziyu",
   "license": "MIT",
   "keywords": [

src/assets/CHANGELOG.md

@@ -1,6 +1,7 @@
-## 2.1.3 (2018-09-14)
+## 2.1.4 (2018-09-17)
 
 #### Bugfix
++ Fix a build issue
 + **ngResizable**: Resize bounds on a draggable element inside a containment is off. [#100](https://github.com/xieziyu/angular2-draggable/issues/100)
 
 ---