FlxG: Add FlxG.onMobile

[DleanJeans]

Also I renamed isMobile in HTML5FrontEnd to onMobile since it sounds better.

[MSGhero]

What's the point of this check? Why not make it @:isVar public static var onMobile(get, never):Bool and

private static inline function get_onMobile():Bool {
   return #if js blah #elseif mobile true #else false #end;
}

[DleanJeans]

Not sure why Travis didn't build. It's been working OK in my project so far.

[MSGhero]

Travis fails every project for the same reason, something weird on cpp and neko.

[DleanJeans]

All the builds were successful but still exited with 1?

[MSGhero]

Yeah, if you look closely,

X Error of failed request:  BadRequest (invalid request code or no such operation)
  Major opcode of failed request:  147 (GLX)
  Minor opcode of failed request:  168 ()
  Serial number of failed request:  173
  Current serial number in output stream:  173

on Haxe 3.2.0 neko and Haxe dev neko/cpp for every recent pull request. This pull is fine since all the demos and coverages passed.

[Gama11]

Thanks!

I'm not a huge fan of putting even more stuff into FlxG, but I don't really have a better alternative right now and this does seem useful.

The Travis failures are indeed unrelated, I'm noto sure what's causing them yet.

I don't like the formatting of get_onMobile()'s body, cramping everything into one line doesn't make it very readable.