Support local / client-only collections and data arrays

Really great package - thanks so much for putting it together !

A question - would it be possible to use a client-side only collection as the data source ?

A first crack at it : by adding a clientOnly parameter, i got the datatable to display a client-side collection, and it sorts correctly. However since you do the search and pagination via subscriptions, I'm not getting that part to work.

https://github.com/petrometro/meteor-tabular/blob/master/client/tabular.js (cf. lines 140, 143, 251, 272)

Start with client/tabular.js, especially the referenced lines 140, 143, 251, and 272, and review how client-side collections are currently displayed and sorted. Trace the subscription-based search and pagination paths, then verify that local collections and data arrays support those operations as well as display and sorting.

Written by the indexing model from the issue text.