[ANN] Clojure 1.9.0-alpha2

[Alex Miller]

lojure 1.9.0-alpha2 is now available.

Try it via
- Download: https://repo1.maven.org/maven2/org/clojure/clojure/1.9.0-alpha2
- Leiningen: [org.clojure/clojure "1.9.0-alpha2"]

1.9.0-alpha2 includes the following changes since 1.9.0-alpha1:

- Better describe for s/+
- Capture *recursion-limit* on gen call
- explain-data now contains :in key for the input path
- CLJ-1931 - with-gen throws AbstractMethodError