[mms] Improved display of contents of ZIP attachments.
[mms] More thorough handling of tar.gz data.
[mms] Add ability to download individual files from within a .tgz attachment.
Combine ZIP and tgz output into a single template
Abstract MIME part status actions to a function

First step to restricting MIME status actions to an individual part
Do all of HTML image MIME actions in single link
Fix lazy loading of images in the downward direction
No longer used option
Add toString magic method to Horde_Mime_Id
Abstract inline part display generation

Also allow part display generation to be restricted by MIME ID.
fix phpdoc
Only refresh the affected part when doing a MIME viewer action