Add var keyword for FontDetect and generate minified version.

[ahmadazimi]

var keyword was not placed before FontDetect statement, so in use strict mode you have an error.

[JenniferSimonds]

Good catch, thanks! But I'll need you to make 2 changes before I can merge this:

1. Please submit the pull request to Stage 3.0.2 instead of Master. Once a version is ready to be released, I merge the current Stage into Master. This keeps Master clean while changes or bugfixes are still under development.
2. Don't bother including fontdetect.min.js - I'll minify fontdetect.js when it's ready to release.

[ahmadazimi]

I've created a new pull request. I hope I've done it correctly.