Email Log 1.2.0

Support for XF 2.3
Strictly enforce XF 2.2+
Show user display picture and link to edit user on email list

This is an update to add the following:
Pagination
Search by email address

XF 2.3 support will come in the next release.

Fix bug for handling account deletions by add-ons with an email

Fix bug causing warning on non-user initiated emails