Merge branches 'master', 'dev' and 'baseQuery' of https://github.com/lumapictures/meteor-jquery-datatables into baseQuery

* 'master' of https://github.com/lumapictures/meteor-jquery-datatables:

* 'dev' of https://github.com/lumapictures/meteor-jquery-datatables:

* 'baseQuery' of https://github.com/lumapictures/meteor-jquery-datatables:
  working query tests
  refactored mapQuery into instance methods
  working observer tests
working mapquery tests
add mapSortOrder tests
added arr
added some subscription tests