Update dependencies

package.json

@@ -28,12 +28,12 @@
   },
   "dependencies": {
     "bindings": "^1.2.1",
-    "nan": "^2.4.0"
+    "nan": "^2.5.1"
   },
   "devDependencies": {
-    "mocha": "^3.0.2",
-    "should": "^11.0.0",
-    "sinon": "^1.17.5"
+    "mocha": "^3.2.0",
+    "should": "^11.1.2",
+    "sinon": "^1.17.7"
   },
   "gypfile": true
 }

yarn.lock

@@ -160,7 +160,7 @@ mkdirp@0.5.1:
   dependencies:
     minimist "0.0.8"
 
-mocha@^3.0.2:
+mocha@^3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/mocha/-/mocha-3.2.0.tgz#7dc4f45e5088075171a68896814e6ae9eb7a85e3"
   dependencies:
@@ -180,7 +180,7 @@ ms@0.7.1:
   version "0.7.1"
   resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.1.tgz#9cd13c03adbff25b65effde7ce864ee952017098"
 
-nan@^2.4.0:
+nan@^2.5.1:
   version "2.5.1"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.5.1.tgz#d5b01691253326a97a2bbee9e61c55d8d60351e2"
 
@@ -226,7 +226,7 @@ should-util@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/should-util/-/should-util-1.0.0.tgz#c98cda374aa6b190df8ba87c9889c2b4db620063"
 
-should@^11.0.0:
+should@^11.1.2:
   version "11.1.2"
   resolved "https://registry.yarnpkg.com/should/-/should-11.1.2.tgz#3cad9c6fc600ffe2e1547d948be3284e984da946"
   dependencies:
@@ -236,7 +236,7 @@ should@^11.0.0:
     should-type-adaptors "^1.0.1"
     should-util "^1.0.0"
 
-sinon@^1.17.5:
+sinon@^1.17.7:
   version "1.17.7"
   resolved "https://registry.yarnpkg.com/sinon/-/sinon-1.17.7.tgz#4542a4f49ba0c45c05eb2e9dd9d203e2b8efe0bf"
   dependencies: