Version 0.9.12

• Compatibility with libuv+libwebsockets libraries for waiter and network layer.
• Better management of default title for group chatrooms.
• Improved integration tests: avoid chatd timeout failures.
• Wait for presence config reception before assuming any presence status.
• Fix connection issue when chatd connection is already logged in for that shard.
• Fetch chat URLs per shard instead of per chatroom.
• Fix promises resolution when socket is closed.
• Minor fixes.