Outdated Browser Message Fixes

# Outdated Browser Message Fixes
- **Standardize Markup**
  - Remove unmatched `</a>`
  - Change `id="Google-Chrome-Frame-Hint"` to `class="Google-Chrome-Frame-Hint"`
    - The `id` attribute is supposed to be unique. ([More Info](http://css-tricks.com/the-difference-between-id-and-class/ "More Info"))
- **Make Outdated Browser Message Undismissable:** Out-of-date browsers tend to make sites don't work, isn't really a message that can be ignored.
- **Fix typo:** _"with **t**_ to _"with"_