fix(package): update ng2-smart-table to version 1.2.1

Closes #74

Author: greenkeeper[bot]

package.json

@@ -42,7 +42,7 @@
     "lodash": "^4.12.0",
     "ng2-bootstrap": "^1.3.0",
     "ng2-ckeditor": "1.1.5",
-    "ng2-smart-table": "^0.5.1-0",
+    "ng2-smart-table": "^1.2.1",
     "ng2-tree": "^2.0.0-alpha.0",
     "ngx-uploader": "^2.0.24",
     "normalize.css": "^5.0.0",