v6.0.0-alpha.5

• [new] Invalid isolation levels passed to transactions will now throw an error
• [new] Duplicate parameter names in queries/stored procedures will now throw an error
• [new] replaceInput and replaceOutput functions added to Request and PreparedStatement to facilitate replacing existing parameters
• [new] Calls to the global connect function will return the global connection if it exists
• [change] Closing the global connection by reference will now cleanup the internally managed globalConnection