Enable paging of webView with meta-tag

As I am a big fan of the wired magazine I came across this issue. Some pages are pagingEnabled and some aren't. So I thought this would be a great feature for baker as well. (I already use it in my current project). Simply add
```<meta name="paged" content="YES">````.

If you don't want it to be paged, just get rid of this meta tag or set it to NO. Easy as that. If you like it, merge it, if not hate it :D