v0.3.0

Close method now closes all the connections.

Thanks @csvigliano @dhensby

v0.2.3: Merge pull request #3 from andrew-barnett/fix/pool-close

Fixes the method close() to close a connection only if it is already established

Upgrade mssql to 4.2.2

Upgrade mssql due to a bug fix. Thanks @csvigliano and @willmorgan