Options as anonymous functions

I just had a little discussion with an datatables author.
https://github.com/DataTables/DataTables/pull/713

Basically, I want pass anonymous functions as options.
For example:

```
language: {
url: function () {
return '/getDataTableLanguageFile/' + TAPi18n.getLanguage();
}
}
```

or

```
title: function () {
if (Meteor.isClient) {
return TAPi18n.__('From');
}
return 'From';
}
```

It works like a charm with the PR I've submitted there.

They won't implement this at the moment.
Would you mind if we implement this in your package?

Start by tracing how meteor-tabular passes DataTables options into the package, then compare the requested behavior with DataTables pull request #713. Done means options such as language.url and title accept anonymous functions and produce the values shown in the examples.

Written by the indexing model from the issue text.