Update fengoffice package to 1.7.1 (Feng Office 1.7.1).

What’s new?

Main new features of this version are:

    * Definition of task subtypes
    * Saving sent email on IMAP server
    * Email login
    * Direct URL
    * Exact match on search results
    * New task status filters
    * Exporting all contacts to VCard
    * and more ...

(taca)