fix slow connection, '/' in pub key, and hbbr wait for key, and possible

solution for https://github.com/rustdesk/rustdesk-server/issues/24

libs/hbb_common/src/lib.rs

@@ -35,7 +35,6 @@ pub use sodiumoxide;
 pub use tokio_socks;
 pub use tokio_socks::IntoTargetAddr;
 pub use tokio_socks::TargetAddr;
-pub use lazy_static;
 
 #[cfg(feature = "quic")]
 pub type Stream = quic::Connection;