Merge pull request #84 from arup-group/release_version_4_alpha

Prepare v0.0.4-alpha release

Merge pull request #66 from arup-group/prepare_release_0.0.3-alpha

Update the changelog for release 0.0.3-alpha

Merge pull request #44 from arup-group/release_0.0.2-alpha

Update the changelog for release 0.0.2-alpha

Reset the version number for the first alpha release