Sort columns/rows by name or other label

[Robert Leach]

For either entire matrix or selected rows/columns. Menu example:

• Sort all rows by -> names
• Sort selected rows by -> names

[Robert Leach]

Removing milestone: Editing (automated comment)

[Anastasia Baryshnikova]

This feature, combined with the possibility of issue #109 (loading additional row/column labels), can replace the Karyoscope feature of the old Treeview 2.0 (which was brought up by a beta-tester). In Karyoscope, you could look at your data after sorting row/column in chromosomal order (by chromosome number, first, and then by genomic coordinate). This is a very important application of sorting as it is often used as a quality control on the data (if there're any trends related to chromosomal position, it may be a signal of batch effects and/or other systematic biases).

[Anastasia Baryshnikova]

Related to issue #22.