Provide a "View" link next to Office attachments

The aim of this feature would be to let users look at the content of Office documents attached to wiki pages without downloading them (similar to the attachment preview feature in Gmail).

It would work the following way:

• #if the OpenOffice server is running && the attached file is an Office file (.doc, .xls, .ods, .odt)
• Display a "Preview" link next to "Delete" & "Edit" at the right of the attachment name
• Clicking on preview opens a new browser window/tab
• At the top of the window is a banner saying "You are looking at a preview of the following document: $docName." + a link to close the window
• The displayed document is the OOo HTML conversion output of the original document (no need to fitlter it through wiki syntax in this case I think)
• Once generated, the page might need to be saved / cached so that other people can access it + this way it wouldn't need to be generated again for a given version, saving OOo server use