Add Basic Support for Postgres
Add Basic Support for Postgres

Because postgres can use prepared statments, Polo was failing to capture generated SQL.
Disabling prepared statements while capturing the queries fixed this issue.

Rails earlier than version 4.0.1 doesn't have support to prepared statements,
so the call to unprepared_statement should be prevented.

fixes support for rails < 4.0.1, that doesn't have unprepared_statments

IFTTT/polo,craigmcnamara/polo