[FIX] Skip (most of) Domain Password module's processing for anonymous users.
Them module should be hidden from anonymous users, since a logged in user is required to get/set values.
The domain name for the module can be displayed

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@49570 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] Throw exception if cryptphrase is not found. Proceeding will cause unpredictable errors, due to incorrect decryption key

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@49571 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] Catch exceptions

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@49572 b456876b-0849-0410-b77d-98878d47e9d5