Suggest initOnMigrate for non-empty schemas
Merge pull request #564 from pwielgolaski/master

performance improvement for MigrationVersion.compareTo
Fixed #563
Fixed #559
Create LICENSE
Added license info to the project per GitHub standard LICENSE file
Update README.md
Update README.md
Fixes #570
Merge remote-tracking branch 'origin/master'
Fixes #571
Refactored DbExecutor to use a plain sql connection