Close #670 - Update to jQuery 1.9.1

doc/lib.md

@@ -87,7 +87,7 @@ If you're using LESS, make sure you compile the files to the proper locations:
 
 JavaScript is loaded in the following order:
 
-1. `jquery-1.9.0.min.js` via Google CDN with local fallback
+1. `jquery-1.9.1.min.js` via Google CDN with local fallback
 2. `/theme/assets/js/vendor/modernizr-2.6.2.min.js`
 3. `/theme/assets/js/plugins.js` (in footer)
 4. `/theme/assets/js/main.js` (in footer)

doc/usage.md

@@ -28,7 +28,7 @@ A basic Roots theme initially looks like this:
 │       ├── main.js
 │       ├── plugins.js (includes bootstrap.js)
 │       └── vendor
-│           ├── jquery-1.9.0.min.js
+│           ├── jquery-1.9.1.min.js
 │           └── modernizr-2.6.2.min.js
 ├── doc
 ├── lang