Comment 0 for bug 1541125

Now that we've got a calendar in indicator-datetime in Unity 8, there are a few features from Unity 7 that we should decide if/how we're goint to handle in Unity 8.

* Show Week Numbers
* Highlight days of the month that include appointments
* Unity tells indicator-datetime what calendar day has been clicked so that the "upcoming appointments" list can be adjusted accordingly

These are currently implemented as fields in a GAction state dictionary and documented in http://bazaar.launchpad.net/~indicator-applet-developers/indicator-datetime/trunk.15.10/view/head:/README ... however that was all done for Unity 7, and IMO it would make sense to improve the unity<->indicator API here so that Unity8 doesn't have to deal with key-variant map GAction states :-)