Fixed index out of bounds range
Add unit tests.
Modified signature of the GetChanges methods
Updated to use Rfc2898DeriveBytes
Minor style guideline updates.
Fixed issue with "Update" comparisions being incorrectly evaluated due to improper value comparisions.
Save changes for only editable fields
Fixed issue with Int32 and Float types in the wrong place.
Fixed data type issues.
Added new comparers.
Improved Update method for comparisions and DBNull values