function bts(bytes) {
		var out = [];
		for (var i = 0, il = bytes.length; i < il; i++) {
			out.push(String.fromCharCode(bytes[i]));
		}
		return out.join('');
	}
Module for working with file. Shall implement
IEmmetFile interface.

Since implementation of this module depends
greatly on current runtime, this module must be
initialized with actual implementation first
before use. E.g. 
require('./plugin/file')({
	read: function() {...}
})

By default, this module provides Node.JS implementation