Fixed resuming session and splash removal.
Fixed resuming session and splash removal.

When resuming a session, we don't want to remove the splash until after
the conversation list has been presented.

When not resuming a session, we don't want to remove the splash until
after connecting.

ropik/Atlas-Messenger-iOS,InterfaceInc/Atlas-Messenger-iOS,layerhq/Atlas-Messenger-iOS,layerhq/Atlas-Messenger-iOS,Eynaliyev/Atlas-Messenger-iOS,InterfaceInc/Atlas-Messenger-iOS,InterfaceInc/Atlas-Messenger-iOS,ropik/Atlas-Messenger-iOS,Eynaliyev/Atlas-Messenger-iOS