Revert "Address LoaderException during scan"

This reverts commit 43db460e642624c08ec3d690ce6a04351ce79965.
pass schema parameter to Execute
revert by error
Updated nuspec file
Reuse associated instance during mapping
Bumped the version
Update README.md
Fixed ObjectScope.Commit
Upgraded packages; bumped the version to 1.0.2
Got rid of type parameter in internal Execute method

Dropped type parameter in RetrieveScalar; also RetrieveScalar now requires full SQL statement
Updated dependencies
Fixed binary value support