upgrade definition.cackage / option.name

Upgrade to accept multiple Names and use them based on a object with
'package name': 'path'.

This is BC and defaults to first Name. New uses in gruntfile:

options: {
name: {
More: null,
Core: 'node_modules/mootools-core/'
}
},
Merge pull request #3 from SergioCrisostomo/adapt-to-more

upgrade definition.package / option.name