Merge pull request #17 from kaymal/bugfix/15-fix-column-dtype-conversion

Bugfix/15 fix column dtype conversion

Merge pull request #13 from kaymal/update-package-data

Update package data

Merge pull request #9 from kaymal/release-v0.3.0

release updates

Merge pull request #5 from kaymal/release-0.2.0

version changes for v0.2.0

initial commit