Merge pull request #64 from est31/release_0_5_0

Release 0.5.0

Merge pull request #59 from est31/release_0_4_0

Release 0.4.0

Merge pull request #50 from est31/release_032

Release 0.3.2

Merge pull request #45 from est31/master

Release 0.3.1

Merge pull request #40 from est31/release_030

Release 0.3.0

Merge pull request #32 from est31/release_021

Release 0.2.1

Merge pull request #25 from est31/release_0_2_0

Release 0.2.0