core: backend autoconnection:

A new Connection/autoconnect_backend param can be set for a profile or component to be
started automatically with backend. This is specially useful for components, but can be
useful for client profile too (e.g. on Android we need to start profile with backend to
get notifications, this part will come with following commits).

The new Sqlite.getIndParamValues method allows to retrieve the same parameters for all
profiles.

sat/plugins/plugin_misc_account.py

@@ -20,7 +20,6 @@
 from sat.core.i18n import _, D_
 from sat.core.log import getLogger
 
-log = getLogger(__name__)
 from sat.core import exceptions
 from sat.tools import xml_tools
 from sat.memory.memory import Sessions
@@ -32,6 +31,10 @@ from twisted.python.failure import Failure
 from twisted.words.protocols.jabber import jid
 from sat.tools.common import email as sat_email
 
+
+log = getLogger(__name__)
+
+
 #  FIXME: this plugin code is old and need a cleaning
 # TODO: account deletion/password change need testing
 
@@ -742,7 +745,8 @@ class MiscAccount(object):
         d.addCallback(
             lambda __: self.host.memory.getProfileName(jid_s)
         )  # checks if the profile has been successfuly created
-        d.addCallback(self.host.connect, password, {}, 0)
+        d.addCallback(lambda profile: defer.ensureDeferred(
+            self.host.connect(profile, password, {}, 0)))
 
         def connected(result):
             self.sendEmails(None, profile=jid_s)

sat/plugins/plugin_misc_email_invitation.py

@@ -281,7 +281,7 @@ class InvitationsPlugin(object):
             except KeyError:
                 pass
             else:
-                yield self.host.connect(guest_profile, password)
+                yield defer.ensureDeferred(self.host.connect(guest_profile, password))
                 guest_client = self.host.getClient(guest_profile)
                 yield id_plugin.setIdentity(guest_client, {'nick': name})
                 yield self.host.disconnect(guest_profile)