Merge pull request andir#185: Release 0.4.0

Merge pull request: Towards a new release

Merge pull request andir#125: 0.3.0 release

Merge pull request andir#77 from andir/andir/prepare-0.2.4

Andir/prepare 0.2.4

Merge pull request andir#69 from andir/andir/0.2.3

Prepare version 0.2.3

update to 0.2.2

update to 0.2.1

Merge pull request andir#35 from piegamesde/dev

Release preparation

Small fixes