Added missing information about `open` event emitted by `Connection`.
Merge pull request #4 from Hypermediaisobar-admin/master

Tests do not drop created tables
Merge pull request #5 from Hypermediaisobar-admin/fix-readme-connection-event-info

Information about `open` event is missing from README
Merge branch 'master' of https://github.com/grncdr/node-any-db-adapter-spec into any-db-mssql-test