auto-release framework builds from Travis CI to gh-pages => for review, do not merge

This is a first stab at making Travis CI making releases of browserify-built version of haspace. Here are the main ideas:

* each build on the Travis CI runs `package` phase to produce browserified version of compiler + runtime
* each build of the `master` branch will result in having build outcome being pushed to the `gh-pages` branch
* builds are copied to the following folders structure: `\dist\[version from package.json]`

This PR, when merged, would fail at the publish time since we need to create the detached `gh-pages` branch first. I will create & push this branch before merging but just wanted to get your early feedback. 

In any case, we should have a new release (snapshot or otherwise) published on the net 5 minutes after checkin. Pretty awesome, no?