create release 0.12.1 (openml#1054)

fix loky/concurrency issue (openml#1042)

Merge pull request openml#969 from openml/develop

Prepare 11.0 release

Release version 0.10.2 (openml#869)

* Fixing broken links (openml#864)

* Adding license to each source file (openml#862)

* Preliminary addition of license to source files

* Adding license to almost every source file

* add task_type to list_runs (openml#857)

* add task_type to list_runs

* length of run change

* changelog

* changes in progress rst

* Prepare new release (openml#868)

Merge pull request openml#863 from openml/develop

Release OpenML 0.10.1

MAINT prepare new release (openml#764)

Merge pull request openml#617 from openml/develop

[WIP] New release

Merge pull request openml#297 from openml/bump-version-number

Bump version number

0.2.2