Updated reamde
Update README.md
Deleted Session alias
Fixed tests
Added how to contribute
Fixed #3 ConnectionPool settings support
Added play-plugin project
Added mysql port
Fixed postgresql driver dependency
Added play plugin
Removed unnecessary imports
Fixed tests, now it works with PostgreSQL
Refactored added AsyncConnection#isActive
Refactored
Refactored tests
Fixed one-to-many failure
Added #sharedSession
Added play-sample project
Updated samples
Updated readme