chore(package): update dependencies

package.json

@@ -157,13 +157,13 @@
     "coffee-formatter": "^0.1.2",
     "coffee-script": "^1.11.0",
     "csscomb": "^4.0.1",
-    "diff": "3.0.0",
+    "diff": "3.2.0",
     "editorconfig": "^0.13.2",
     "eslint": "^3.13.1",
     "event-kit": "^2.1.0",
     "expand-home-dir": "0.0.3",
     "extend": "^3.0.0",
-    "gherkin": "2.12.2",
+    "gherkin": "4.1.3",
     "handlebars": "^4.0.2",
     "js-beautify": "^1.6.3",
     "jscs": "^3.0.7",
@@ -175,16 +175,16 @@
     "node-dir": "^0.1.16",
     "node-uuid": "^1.4.3",
     "open": "0.0.5",
-    "prettydiff": "^1.16.27",
+    "prettydiff": "^99.0.1",
     "pug-beautify": "^0.1.1",
-    "remark": "^6.0.1",
-    "season": "^5.3.0",
+    "remark": "^7.0.1",
+    "season": "^6.0.0",
     "space-pen": "^5.1.1",
     "strip-json-comments": "^2.0.1",
     "temp": "^0.8.3",
-    "tidy-markdown": "2.0.3",
-    "typescript": "^1.8.10",
-    "typescript-formatter": "^2.3.0",
+    "tidy-markdown": "2.0.5",
+    "typescript": "^2.3.3",
+    "typescript-formatter": "^5.2.0",
     "underscore-plus": "^1.6.6",
     "universal-analytics": "^0.4.2",
     "which": "^1.2.11",