Merge pull request #33 from mjgarton/upgrade_futures_and_tokio

Upgrade various async dependencies

Author: jonhoo

Cargo.toml

@@ -37,8 +37,8 @@ rustls = {version = "0.20.0", optional=true}
 [dev-dependencies]
 postgres = "0.19.1"
 mysql = "18"
-mysql_async = "0.20.0"
+mysql_async = "0.29.0"
 slab = "0.4.2"
-tokio = "0.1.19"
-futures = "0.1.26"
+tokio = { version = "1.15.0", features = ["full"] }
+futures = "0.3.0"
 rcgen = "0.8.14"