Update grunt dependencies to latest release

Without it there is a lot of deprecated warningns
Warnings like this:
```
npm WARN deprecated minimatch@0.2.14: Please update to minimatch 3.0.2
or higher to avoid a RegExp DoS issue
npm WARN deprecated minimatch@0.3.0: Please update to minimatch 3.0.2 or
higher to avoid a RegExp DoS issue
npm WARN deprecated graceful-fs@1.2.3: graceful-fs v3.0.0 and before
will fail on node releases >= v7.0. Please update to graceful-fs@^4.0.0
as soon as possible. Use 'npm ls graceful-fs' to find it in the tree.
npm WARN deprecated tough-cookie@2.2.2: ReDoS vulnerability parsing
Set-Cookie https://nodesecurity.io/advisories/130
npm WARN deprecated node-uuid@1.4.8: Use uuid module instead
npm WARN deprecated jade@0.26.3: Jade has been renamed to pug, please
install the latest version of pug instead of jade
npm WARN deprecated graceful-fs@2.0.3: graceful-fs v3.0.0 and before
will fail on node releases >= v7.0. Please update to graceful-fs@^4.0.0
as soon as possible. Use 'npm ls graceful-fs' to find it in the tree.
```

build/package.json

@@ -5,16 +5,16 @@
   "private": true,
   "dependencies": {
     "lodash": "^4.0.0",
-    "grunt": "0.4.5",
-    "grunt-replace": "0.7.3",
+    "grunt": "^1.0.0",
+    "grunt-replace": "^1.0.0",
     "grunt-text-replace": "0.3.11",
     "mocha": "1.18.2",
     "chai": "1.9.1",
-    "grunt-mocha": "0.4.11",
+    "grunt-mocha": "^1.0.0",
     "grunt-jscoverage": "0.1.1",
     "grunt-contrib-less": "^1.0.0",
-    "grunt-contrib-requirejs": "^0.4.4",
-    "grunt-contrib-clean": "^0.6.0",
+    "grunt-contrib-requirejs": "^1.0.0",
+    "grunt-contrib-clean": "^1.0.0",
     "grunt-contrib-copy": "^0.8.0",
     "grunt-contrib-uglify": "^0.8.1",
     "grunt-contrib-concat": "^0.5.1",