evolution-data-server: fix gsettings schemas and add dbus service
gnome-contacts: new package

Contacts is GNOME's integrated address book

https://wiki.gnome.org/Apps/Contacts
telepathy-mission-control: add dbus service, enabled by default on gnome3
file-roller: fix gsettings schemas
at-spi2-core: add dbus module, enabled on gnome3 by default
gnome-dictionary: remove the duplicated entry under desktop/
Add environment.gnome3.excludePackages

Give the user a full desktop, and the possibility to exclude
non-base packages from the default list of packages.