Add import in __init__.py to enable API

Adds an import to the __init__.py to enable importing via API

Props to @krazykoder

Fixes #86

Bump to 0.5.2

Bump version to v0.5.0

Bump to v0.4.2, fix build issue

Bump to v0.4.0

Bump to v0.3.1

Add publish command

Bump to 0.2.3

Merge pull request #55 from mkaz/wgxo-master

Rename arg to label-before

Merge pull request #49 from HiromuIshikawa/fix_different-scale

Fix bug of different-scale option about indentation