gitignore tailored for vim
Initial approach: Array of Arrays Dataset
moved test script into separate file, added unit testing ability
Add filter, limit, and remove columns methods.
Added column-restricted filtering

Added unit tests:
    - filter (simple, column-restricted)
    - limit
    - remove_columns
    - sort (alpha, num, multi-column)
Added ms columns next to Hz column
Add append, pagination cabilities.
Added support for column metadata
Extended constructor tests
Started implementing the 'join' method
Added:
    - inner join
    - left outer join
    - right outer join
Sort type now provided by column metadata and not during runtime, added reverse sorting capability
Added:
    - grouping (single and multi-column)
    - alter column: name, sort type, aggregate type
Added multi-field join capability
Added partitioning
- Added column property: title

- Added documentation
- Refactored columns handling
- JData will not block event queue on computation now (except sort)
Converted to a merge sort implementation
Sort does not block the event queue now.
Updated docs to reflect new functions calls from asynch changes