chore(package): update lockfile

https://npm.im/greenkeeper-lockfile

yarn.lock

@@ -718,10 +718,14 @@ combined-stream@^1.0.5, combined-stream@~1.0.5:
   dependencies:
     delayed-stream "~1.0.0"
 
-commander@^2.9.0, commander@~2.12.1:
+commander@^2.9.0:
   version "2.12.2"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.12.2.tgz#0f5946c427ed9ec0d91a46bb9def53e54650e555"
 
+commander@~2.13.0:
+  version "2.13.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.13.0.tgz#6964bca67685df7c1f1430c584f07d7597885b9c"
+
 compare-func@^1.3.1:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/compare-func/-/compare-func-1.3.2.tgz#99dd0ba457e1f9bc722b12c08ec33eeab31fa648"
@@ -3782,11 +3786,11 @@ rollup-plugin-sourcemaps@^0.4.2:
     rollup-pluginutils "^2.0.1"
     source-map-resolve "^0.5.0"
 
-rollup-plugin-uglify@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-uglify/-/rollup-plugin-uglify-2.0.1.tgz#67b37ad1efdafbd83af4c36b40c189ee4866c969"
+rollup-plugin-uglify@3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-uglify/-/rollup-plugin-uglify-3.0.0.tgz#a34eca24617709c6bf1778e9653baafa06099b86"
   dependencies:
-    uglify-js "^3.0.9"
+    uglify-es "^3.3.7"
 
 rollup-pluginutils@^2.0.1:
   version "2.0.1"
@@ -4399,6 +4403,13 @@ [email protected]:
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.6.2.tgz#3c5b6fd7f6de0914269027f03c0946758f7673a4"
 
+uglify-es@^3.3.7:
+  version "3.3.7"
+  resolved "https://registry.yarnpkg.com/uglify-es/-/uglify-es-3.3.7.tgz#d1249af668666aba7cb1163e277455be9eb393cf"
+  dependencies:
+    commander "~2.13.0"
+    source-map "~0.6.1"
+
 uglify-js@^2.6, uglify-js@^2.8.29:
   version "2.8.29"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.8.29.tgz#29c5733148057bb4e1f75df35b7a9cb72e6a59dd"
@@ -4408,13 +4419,6 @@ uglify-js@^2.6, uglify-js@^2.8.29:
   optionalDependencies:
     uglify-to-browserify "~1.0.0"
 
-uglify-js@^3.0.9:
-  version "3.2.2"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.2.2.tgz#870e4b34ed733d179284f9998efd3293f7fd73f6"
-  dependencies:
-    commander "~2.12.1"
-    source-map "~0.6.1"
-
 uglify-to-browserify@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"