chore(deps): update typescript to version 2.7.1

package.json

@@ -111,7 +111,7 @@
     "tape-promise": "^2.0.1",
     "ts-node": "^4.0.1",
     "tslint": "^5.4.2",
-    "typescript": "^2.6.1",
+    "typescript": "^2.7.1",
     "write-json-file": "^2.2.0"
   },
   "directories": {

shrinkwrap.yaml

@@ -90,7 +90,7 @@ devDependencies:
   tape-promise: 2.0.1
   ts-node: 4.1.0
   tslint: 5.9.1
-  typescript: 2.6.2
+  typescript: 2.7.1
   write-json-file: 2.3.0
 packages:
   /@commitlint/cli/4.3.0:
@@ -4650,12 +4650,12 @@ packages:
     dev: true
     resolution:
       integrity: sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
-  /typescript/2.6.2:
+  /typescript/2.7.1:
     dev: true
     engines:
       node: '>=4.2.0'
     resolution:
-      integrity: sha1-PFtv1/beCRQmkCfwPAlGdY92c6Q=
+      integrity: sha512-bqB1yS6o9TNA9ZC/MJxM0FZzPnZdtHj0xWK/IZ5khzVqdpGul/R/EIiHRgFXlwTD7PSIaYVnGKq1QgMCu2mnqw==
   /uglify-js/2.8.29:
     dependencies:
       source-map: 0.5.7
@@ -5069,7 +5069,7 @@ specifiers:
   tape-promise: ^2.0.1
   ts-node: ^4.0.1
   tslint: ^5.4.2
-  typescript: ^2.6.1
+  typescript: ^2.7.1
   util.promisify: ^1.0.0
   validate-npm-package-name: ^3.0.0
   version-selector-type: ^2.0.0