Refactor/networking (#2189)

* refactor networking and account

* add interfaces from manifest automatically

* use nistp256 to satisfy firefox

* use ed25519 if available

* fix ip signing

* fix SQL error

* update prettytable to fix segfault

* fix migration

* fix migration

* bump welcome-ack

* add redirect if connecting to https over http

* misc rebase fixes

* fix compression

* bump rustc version

backend/src/util/mod.rs

@@ -330,3 +330,7 @@ impl FileLock {
         Ok(())
     }
 }
+
+pub fn assure_send<T: Send>(x: T) -> T {
+    x
+}