(chore): Add bower definition and dist files

Our project only exposes bower components to the web and not npm modules.
As I would like to depend upon angular-hint without adding an extra build step, a bower component would be the easiest way to manage this dependency.
Therefore I propose to expose the browserified `hint.js` via bower package.
As I am not sure whether this should be happening in a separate repositiory instead and/or if anyone agrees this is a general use-case, I am opening this PR for general discussion.