Set dummy conference info as a null core.
Load new items in case of chaning dates.
Allow gui to load until current date.
Fix video direction on screensharing.
Update SDK for tone indication on meetings.
Clean
- set cpp managment for list
- remove items stored in shared pointer that are managed by Gui
- queue connection for signals between GUI/Core in order to avoid calling functions while destructions.
conf creation loading+error; fix info popup layout
move contact edition in contact page (switch to contact tab if creation requested)
fix contact creation + select new contact on creation
conference info list : creation signal (to finish when conference scheduler is updated, see comment)
fix crash if no vcard
fix calendar ui
+spacings
layout polish (! on string in meetinglist)
