sort uploaded mutations

[reimand0]

We should be able to sort mutations in the table of uploaded mutations. I think the best default view would be by gene/isoform/protein_position so that adjacent mutations would show up close to one another.

[krassowski]

I made tables with uploaded mutations sortable.

The default action is not to sort as for bigger datasets and slower machines it could render the page unresponsive for some time; instead a button for sorting with the proposed criteria is exposed to the user:

As an alternative, we could perform the multi-sort server-side, during the search itself, possibly using heap sort so the whole procedure should be quite effective; the only drawback is that it will add some additional complexity to the code. Even if we perform the first (default) sort on the server-side, the "sort" button will be useful to allow user to revert to default order.

Here is how it look now:

Please let me know what do you think and if any improvements are needed.

[krassowski]

Closing for now, please feel free to reopen if any improvement is needed.