Implemented get_filtered_messages in empathy log store.
Implemented get_filtered_messages in empathy log store.

Signed-off-by: Jonny Lamb <jonny.lamb@collabora.co.uk>

svn path=/trunk/; revision=2607

Distrotech/telepathy-account-widgets,GNOME/telepathy-account-widgets,Distrotech/telepathy-account-widgets,GNOME/telepathy-account-widgets,GNOME/telepathy-account-widgets