Remove debug line
Remove WebViewLoader

It'd be nice to replace this with the new Ubuntu.Web 0.2, but that won't
be added to 14.04.  As a consolation, it'd be nice to replace this with
Ubuntu.Components.Extras.Browser 0.2, but that doesn't have download
support in 14.04 (though it is coming:
https://bugs.launchpad.net/oxide/+bug/1282063).  So we fall back to the
old QtWebKit-based browser, which we should be able to count upon now.
Refs #50.
Update BookPage to use Oxide browser

For some reason, the layout takes forever when the WebView is hidden, so
we hide the layout flash with opacity instead.  Refs #50.
Add TitlelessDialog

This modification of the Ubuntu Dialog element omits the title and
subtitle.  Refs #44.
qmlmessaging: Print un-parseable messages

Also, don't try to parse messages that are the new URL (127.0.0.1) when
we load a page.
Don't load external links in BookPage