telepathy: implement the refresh_account method
telepathy: implement the refresh_account method

https://bugzilla.gnome.org/show_bug.cgi?id=696267

dnohales/gnome-online-accounts,Distrotech/gnome-online-accounts,Distrotech/gnome-online-accounts,halfline/gnome-online-accounts,halfline/gnome-online-accounts,Distrotech/gnome-online-accounts,felipeborges/gnome-online-accounts,halfline/gnome-online-accounts,dnohales/gnome-online-accounts,ritzk/gnome-online-accounts,ritzk/gnome-online-accounts,dnohales/gnome-online-accounts,felipeborges/gnome-online-accounts,ritzk/gnome-online-accounts,felipeborges/gnome-online-accounts