Improve log message on message send
Fix undefined offset error
Reset message log and attachment list open status when switching preview messages
More places to convert Horde_Mapi_Extension -> Horde_Compress_Extension
[mms] Fix fatal error if using TNEF viewer and bcmath extension is not installed on the system.
More fixes for escaping subject information
Better login logging
Add 'url' property
Better login logging for IMP