We should standardize our Table sorting behavior throughout Kibana. This way users can sort ant Table and know what to expect.

Let's sort the way OS X does it:

1. When a table is first viewed, all columns default to sorting Ascending on the default column. We'll call this Column A.
2. Clicking on a new column, Column B, sorts the table by that column, also Ascending.
3. Clicking on Column B again reverses the sort to Descending. This sort direction is preserved on a per-column basis.
4. This means that clicking on Column A will sort the table Ascending by that column, because that was the direction that column was last sorted with.
5. Likewise, clicking on Column B will sort the table Descending by column, because that was the last direction that column was sorted with.