UP-3626 Complete consolidation of impersonation logic
UP-3630 Switch to base64 string in varchar

Switch from byte[] for member address data base64 and
store in varchar. This resolves a problem with MySQL
and byte[] as part of a key
Revert "UP-3624"

This reverts commit 690fb8f1e4036452bdc1893d8e1a3e76f457c5fc.
Revert "UP-3624"

This reverts commit d028ae7ddb7c9f393d38bd9440414f8b9f4bc174.