restored default PostgreSQL ports (:5432) in connection strings
updated Simple.Data to v0.18.3.1
added support for inserting enums
fixed inserting enums for InsertMany in BulkInserter
fixed paging in postgre - adapter was using incorrect MySql-specific
syntax before
Merge pull request #5 from ultrico/master

Updated to Simple.Data 0.18.3.1 and fixed some bugs