Merge pull request #68 from steveklabnik/master

fail -> panic
Update for rust changes
Update for DST changes
Update for PHF changes
Update for removal of collections traits
static -> const
PostgresResult -> Result
PostgresConnectTarget -> ConnectTarget
PostgresUserInfo -> UserInfo
PostgresConnectParams -> ConnectParams
PostgresNoticeHandler -> NoticeHandler
PostgresNotification -> Notification
PostgresCancelData -> CancelData
PostgresConnection -> Connection
Remove the old connection pool

It's been deprecated for a long time
PostgresStatement -> Statement
PostgresTransaction -> Transaction
PostgresCopyInStatement -> CopyInStatement
PostgresRow -> Row
PostgresLazyRows -> LazyRows