Release 3.3.2

Merge pull request biolab#1135 from ales-erjavec/win-install-update-pip

Windows installer: update pip on target system if required

Merge pull request biolab#1129 from astaric/fixups

[FIX] OWRank no longer crashes when additional learners are available

Merge pull request biolab#890 from ales-erjavec/venn-diagram-unique-v…

…alues-fix

Venn Diagram:  Add option to output unique/all instances.

Release 3.1

Release 3.0.1

  * Add missing icons.
  * Fix fonts on OSX 10.9 Mavericks

Tag 3.0 release