Use more common error type\n\nMove to failure::Error after https://github.com/rust-lang-nursery/failure/pull/283 landed.

Dependencies

• [2] EOHEZXX3 Move request processing to structure
• [3] X6L47BHQ Use different structure for established xmpp connection
• [4] FVVPKFTL Initial commit

Change contents

• replacement in src/main.rs at line 45
  [2.266]→[2.266:303](∅→∅)
  − type Error = hyper::http::Error;
  [2.266]

  [2.303]
  + type Error = Box<dyn std::error::Error + Sync + Send>;
• replacement in src/main.rs at line 65
  [2.1157]→[2.1157:1241](∅→∅)
  − .body(Body::from(format!("Unknown destination: {}", err))),
  [2.1157]

  [2.1241]
  + .body(Body::from(format!("Unknown destination: {}", err)))

  + .map_err(|e| Box::new(e) as Box<dyn std::error::Error + Sync + Send>),
• replacement in src/main.rs at line 87
  [2.2213]→[2.2213:2241](∅→∅)
  − }),
  [2.2213]

  [2.2241]
  + })

  + .map_err(|e| Box::new(e) as Box<dyn std::error::Error + Sync + Send>),
• replacement in src/main.rs at line 102
  [2.2532]→[2.2532:2569](∅→∅)
  − type Error = hyper::http::Error;
  [2.2532]

  [2.2569]
  + type Error = Box<dyn std::error::Error + Sync + Send>;
• replacement in src/main.rs at line 104
  [2.2600]→[2.2600:2681](∅→∅)
  − type Future = tokio::prelude::future::FutureResult<ServiceCmd, Self::Error>;
  [2.2600]

  [2.2681]
  + type Future = tokio::prelude::future::FutureResult<ServiceCmd, Self::MakeError>;