Chunk British and American gut

This chunks out some of the larger text strings in the FAQ page and also puts all the string replacement back in the British Gut.
@squirrelo, we were leaving tags in the templates where it made sense. eg:

```html
<h4>Some header</h4>
<p>Some text</p>
<p>Some <strong>other</strong> text</p>
```

To 

```html
<h4>{% raw tl['SOME_HEADER'] %}</h4>
<p>{% raw tl['SOME_TEXT' ]%}</h4>
<p>{% raw tl['SOME_OTHER_TEXT'] %}</p>
```