Update to rspotify 0.11.2 (#640)

* Update to rspotify 0.11.x

Many breaking changes

* Minor cleanups via Clippy

Cargo.toml

@@ -22,14 +22,12 @@ platform-dirs = "0.3.0"
 failure = "0.1"
 fern = "0.6"
 futures = { version = "0.3", features = ["compat"] }
-futures_01 = { version = "0.1", package = "futures" }
 lazy_static = "1.3.0"
 librespot-core = "0.3.1"
 librespot-playback = "0.3.1"
 librespot-protocol = "0.3.1"
 log = "0.4.13"
 notify-rust = { version = "4", optional = true }
-rspotify = { version = "0.10.0", features = ["blocking"] }
 serde = "1.0"
 serde_json = "1.0"
 tokio = { version = "1", features = ["rt-multi-thread", "sync", "time"] }
@@ -49,6 +47,11 @@ ioctl-rs = { version = "0.2", optional = true }
 serde_cbor = "0.11.2"
 pancurses = { version = "0.17.0", features = ["win32"] }
 
+[dependencies.rspotify]
+version = "0.11.2"
+default-features = false
+features = ["client-ureq", "ureq-rustls-tls"]
+
 [dependencies.cursive]
 version = "0.16.3"
 default-features = false