chore(package): update tslib to version 1.11.0

Closes #194

Author: greenkeeper[bot]

package.json

@@ -116,7 +116,7 @@
     "sort-object-keys": "1.1.2",
     "standard-version": "4.4.0",
     "ts-jest": "23.10.5",
-    "tslib": "1.9.3",
+    "tslib": "1.11.0",
     "tslint": "5.12.0",
     "tslint-config-prettier": "1.17.0",
     "tslint-config-standard": "8.0.1",