docs(angular.element): add more info, fix formatting

- add info about ngJq
- fix alert box
- add info about css function

Author: Narretz

src/jqLite.js

@@ -33,16 +33,18 @@
  *
  * If jQuery is available, `angular.element` is an alias for the
  * [jQuery](http://api.jquery.com/jQuery/) function. If jQuery is not available, `angular.element`
- * delegates to Angular's built-in subset of jQuery, called "jQuery lite" or "jqLite."
+ * delegates to Angular's built-in subset of jQuery, called "jQuery lite" or **jqLite**.
  *
- * <div class="alert alert-success">jqLite is a tiny, API-compatible subset of jQuery that allows
- * Angular to manipulate the DOM in a cross-browser compatible way. **jqLite** implements only the most
- * commonly needed functionality with the goal of having a very small footprint.</div>
+ * jqLite is a tiny, API-compatible subset of jQuery that allows
+ * Angular to manipulate the DOM in a cross-browser compatible way. jqLite implements only the most
+ * commonly needed functionality with the goal of having a very small footprint.
  *
- * To use `jQuery`, simply ensure it is loaded before the `angular.js` file.
+ * To use `jQuery`, simply ensure it is loaded before the `angular.js` file. You can also use the
+ * {@link ngJq `ngJq`} directive to specify that jqlite should be used over jQuery, or to use a
+ * specific version of jQuery if multiple versions exist on the page.
  *
- * <div class="alert">**Note:** all element references in Angular are always wrapped with jQuery or
- * jqLite; they are never raw DOM references.</div>
+ * <div class="alert alert-info">**Note:** All element references in Angular are always wrapped with jQuery or
+ * jqLite (such as the element argument in a directive's compile / link function). They are never raw DOM references.</div>
  *
  * <div class="alert alert-warning">**Note:** Keep in mind that this function will not find elements
  * by tag name / CSS selector. For lookups by tag name, try instead `angular.element(document).find(...)`
@@ -59,7 +61,8 @@
  * - [`children()`](http://api.jquery.com/children/) - Does not support selectors
  * - [`clone()`](http://api.jquery.com/clone/)
  * - [`contents()`](http://api.jquery.com/contents/)
- * - [`css()`](http://api.jquery.com/css/) - Only retrieves inline-styles, does not call `getComputedStyle()`. As a setter, does not convert numbers to strings or append 'px'.
+ * - [`css()`](http://api.jquery.com/css/) - Only retrieves inline-styles, does not call `getComputedStyle()`.
+ *   As a setter, does not convert numbers to strings or append 'px', and also does not have automatic property prefixing.
  * - [`data()`](http://api.jquery.com/data/)
  * - [`detach()`](http://api.jquery.com/detach/)
  * - [`empty()`](http://api.jquery.com/empty/)