Merge pull request #2 from subtub/master

update develop branch
Fixed issue https://github.com/subtub/subtool/issues/4
Update README.md
Bump version
Revert "Update README.md"

This reverts commit 7872b7fabb9afb85799f0ddbdd91b131b15942f3.
Merge pull request #7 from subtub/develop

Develop