Sync from devel:
    2.8.6-17
    - Add port numbers for Freenode (Debarshi Ray)
    2.8.6-16
    - Added IRCClient .desktop file subcategory (#485306)
    - Added GTK .desktop file subcategory
    - Added curly brackets to the name macro for consistency.
    2.8.6-15
    - Add patch to allow switching to next channel with activity.
    2.8.6-14
    - rebuild against perl 5.10.1