Deprecate package in favor of the official version

Hi Linto,

Nice chatting [earlier](https://github.com/percolatestudio/atmosphere-beta/issues/297#issuecomment-64586170). I've used your wrapper package as inspiration to submit a [PR to the Font Awesome](https://github.com/FortAwesome/Font-Awesome/pull/5061) guys for official Meteor integration. This integration has automatic and visual check tests, and will enable us to have same-day Atmosphere releases whenever FA is updated.

I've published the package on Atmosphere under `fo<b>r</b>tawesome` (which is the correct name of the org). If you'd like to hide [the old package](https://atmospherejs.com/linto/fontawesome) from Atmosphere, you can run

    meteor admin set-unmigrated linto:fontawesome

As you probably know, this will let the package be installable by dependencies, and will just hide it from search.

This also fixes #3, #4, and #5.