* fix the issues with account-store and account-mgr:

* fix the issues with account-store and account-mgr:
  - all the account name are now only the account names, not the full gconf path
  - fixed confusion between server_accounts and accounts
  - fixed the problems with the above in modest-tny-account-store
  - added the _store_get_device function; it returns NULL though, which causes
   the GLib-GObject warning at startup
  - modest-tny-account-store now *replaces* tny-account-store.c with a modest-specific
  implementation. In practice it means that it implements the _get_session.
  - all should work now with the latest tinymail

pmo-trunk-r48