[beta] Backports (#6333)

* overflow check in addition

* add test

* Unexpose methods on UI RPC. (#6295)

* Add more descriptive error when signing/decrypting using hw wallet.

* format instant change proofs correctly

* propagate stratum submit share error upstream, fixes #6258 (#6260)

* updated jsonrpc (#6264)

* Using multiple NTP servers (#6173)

* Small improvements to time estimation.

* Allow multiple NTP servers to be used.

* Removing boxing.

* Be nice.

* Be nicer.

* Update list of servers and add reference.

* Fix dapps CSP when UI is exposed externally (#6178)

* Allow embeding on any page when ui-hosts=all and fix dev_ui

* Fix tests.

* Fix cache path when using --base-path (#6212)

* Time should not contribue to overall status. (#6276)

* v1.7.1

dapps/src/api/api.rs

@@ -21,7 +21,7 @@ use hyper::method::Method;
 use hyper::status::StatusCode;
 
 use api::{response, types};
-use api::time::TimeChecker;
+use api::time::{TimeChecker, MAX_DRIFT};
 use apps::fetcher::Fetcher;
 use handlers::{self, extract_url};
 use endpoint::{Endpoint, Handler, EndpointPath};
@@ -122,7 +122,6 @@ impl RestApiRouter {
 
 			// Check time
 			let time = {
-				const MAX_DRIFT: i64 = 500;
 				let (status, message, details) = match time {
 					Ok(Ok(diff)) if diff < MAX_DRIFT && diff > -MAX_DRIFT => {
 						(HealthStatus::Ok, "".into(), diff)