Fixes non-ASCII characters being mangled in Enyo 1 apps.

This updates Enyo 1 to load JavaScript as UTF-8, as does Enyo 2. (Enyo 2 apps were not affected.)  This issue did not manifest under webOS 2.2 nor 3.0, as JavaScript was loaded using the UTF-8 encoding by default.  The standards do not appear to specify a default charset for JavaScript loaded using the file: protocol, so this does not appear to be the HTML renderer's responsibility, but rather, the framework's.

I'm not aware of any of the built-in apps nor apps available through Preware 2 using non-ASCII characters.  I  observed this in my app Zap Photoshare, of which I can supply a copy to anyone.  I believe Garfonso and Herrie have observed this.