chore(grunt): bump a couple deps

Author: Awk34

Diff for: app/templates/_package.json

@@ -111,7 +111,7 @@
     "grunt-babel": "~6.0.0",<% if(filters.ts) { %>
     "grunt-ts": "^5.3.2",
     "grunt-tsd": "~0.1.0",
-    "grunt-tslint": "~3.0.1",<% } %>
+    "grunt-tslint": "~3.1.0",<% } %>
     "grunt-google-cdn": "~0.4.0",
     "grunt-jscs": "^2.1.0",
     "grunt-newer": "^1.1.1",
@@ -136,7 +136,7 @@
     "grunt-open": "~0.2.3",
     "time-grunt": "^1.2.1",
     "grunt-mocha-test": "~0.12.7",
-    "grunt-mocha-istanbul": "^3.0.1",<% } /*end grunt*/ %>
+    "grunt-mocha-istanbul": "^4.0.2",<% } /*end grunt*/ %>
     "open": "~0.0.4",
     "jshint-stylish": "~2.1.0",
     "connect-livereload": "^0.5.3",