Bumping version to 4.0

Change-Id: I13fa8046a725980738dca38e6cad884aa515dac5
diff --git a/package.json b/package.json
index de96c72..cb93442 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 {
-  "version": "3.0.0",
+  "version": "4.0.0",
   "dependencies": {
     "angular": "1.6.3",
     "angular-animate": "1.6.3",