Basically the last change regarding XDG base dir spec:

install the .desktop files of agents and searchproviders into share/akonadi
rather than share/apps/akonadi, i.e. removing the KDE specific /apps part.

Plugin .desktop files stay in share/apps/akonadi/plugins because they are
part of the KDE specific implementation

svn path=/trunk/KDE/kdepim/akonadi/libakonadi/; revision=704241