Fix deprecations

Revert "Revert "Add option to check for value presence, while allowin…

…g empty values""

This reverts commit 1c62b45.

Switch to updated etag package

Add type to collection's execute() method

Fix issue where ? can leak in via conditions

Add an easy way to query records without the need for a finder

Help IDEs figure out which instances are being returned

Improve signature of setFieldValue() method

Improve types in pool interface

Prepare type read statement