- 2.5.5.1
    - update patch 106 to track upstream, renaming from
        evolution-2.2.2-commit-enter-on-calendar.patch to
        evolution-2.5.5.1-commit-enter-on-calendar.patch
    - update patch 805 to track upstream
    - added patch to fix some newly missing declarations (patch 808)
    - replace evolution-2.5.4-port-to-new-libnotify-api.patch with
        evolution-2.5.5.1-notification-cleanups.patch, since much of this was
        duplicated by another patch that landed upstream; removing the actions
        code as it was crashing deep inside DBus (patch 806, #177666)
    - explicitly list various files to reduce reliance on globbing; organized
        the files into logical groups; comment them
    - added -Wno-sign-compare to CFLAGS
    - enabled parallel make
    - introduced require_function_declarations macro to make
    -Werror-implicit-function-declaration flag optional; turn it off for now
    - include the new CalDAV and mail-attachments-import plugins in the file
        list; add an XML UI file for the mail-to-task plugin.
    - use "sed -i -e" rather than "sed -ie" to avoid getting severe bonobo
        files