Use a regex to split the hxml file.

Allows skipping the "replace newlines with spaces" step, and ensures that there aren't any blank arguments.
Merge consecutive arguments that don't start with -

Otherwise, if the app title contains a space, it'll be passed as two separate arguments and Haxe won't know what to do with it.
Don't skip the first argument.

(See comments on previous commit.)
Merge pull request #246 from player-03/master

Merge consecutive arguments that don't start with -