Also accept instances of uuid.UUID as params in queries.

(cherry picked from commit eb251bcb16ec7dccfd4d7059847494128e0d4102)
Made per-connection initial SQL queries customizable.

(cherry picked from commit a97d806cca0fcc272ef625feadb74a2ce37a9e3a)
docs: Update pymssql connect() signature.

(cherry picked from commit c0778fdda122a31f07e98bf62061d571ed3934b6)