* Switch all new [Class] calls to [Class]::get_instance().
* Add error notice for wp_remote_get() fail.
* Add wp_remote_get() fail functionality.
* Add beginnings of fallback functionality.
* Add first pass of transient and fallback functionality.
* Add .gitignore.
* Add Font Awesome submodule for fallback.
Improve fallback functionality to reflect on both admin and front end.
Add .gitignore.
Improve version selection.
Move array index [0] to its own line for backwards compatibility.
Add version fallback from transient CSS, improve error message.
Add missing conditional around version backup.
Update better-font-awesome-library.php

* Improve wp_remote_get() fail detection to just check for 200 response code.
* Improve version fallback.
* Needs checking!
v0.10.0 changes.
Add missing directories (move /css and /js out of /inc).
Move array index [] to separate line.
Add missing $args parameter to initialize() function.