Starting only "evolution" can start calendar or contacts instead of email

Binary package hint: evolution

if you only run evolution, you can have a starting shell (mail/calendar/contacts) which seems unpredictable.

Main evolution desktop file just run "evolution"

When you start evolution, then switch to calendar, close it and run it again -> you have evolution email.
When you run evolution -c calendar, close it, open "evolution" then -> you get calendar and not email.
When you run evolution -c calendar, switch to email, close it, open "evolution" then -> you get calendar.

That's because evolution doesn't register switching between shell, but only save as default last evolution -c <component>, even if you switch then to another one. With UNE, we use the express mode, and so, specify -c <component> in desktop file to launch the right one, but when you start evolution from various places like the indicator-messages, the evolution (complete version) desktop entry, you can get calendar or contact where you expect email, and you can't switch it back easily.

ken and I was stroke by that and some discussion on IRC with seb128, we decided to remove temporary taking into account the last -c <component> registration in gconf.