Use bootstrap 3.4.0 and bump version

Author: sirudog

package.json

@@ -8,7 +8,7 @@
     "dependencies": {
         "moment": "2.22.2",
         "moment-timezone" : "0.5.5",
-        "bootstrap": "^3.3",
+        "bootstrap": "^3.4",
         "jquery": ">=1.8.3 <2.2.0"
     },
     "description": "A date/time picker component designed to work with Bootstrap 3 and Momentjs. For usage, installation and demos see Project Site on GitHub",
@@ -39,5 +39,5 @@
         "type": "git",
         "url": "https://github.com/eonasdan/bootstrap-datetimepicker.git"
     },
-    "version": "4.17.39"
+    "version": "4.17.40"
 }