Update version to 0.2.0-alpha.1.

Author: reitermarkus

Cargo.toml

@@ -7,7 +7,7 @@ keywords = ["cross", "compilation", "testing", "tool"]
 license = "MIT OR Apache-2.0"
 name = "cross"
 repository = "https://github.com/rust-embedded/cross"
-version = "0.1.16"
+version = "0.2.0-alpha.1"
 edition = "2018"
 
 [dependencies]