feat(otherinstaller): add config release data

Author: ashleygwilliams

_config.yml

@@ -1 +1,18 @@
 name: The Rust Programming Language
+stable: "1.30.1"
+stable_date: "2018-11-08"
+stable_blog: "https://blog.rust-lang.org/2018/11/08/Rust-1.30.1.html"
+stable_full_version: "rustc 1.30.1 (1433507eb 2018-11-07)"
+beta: "1.31"
+beta_date: "2018-12-06"
+nightly: "1.32"
+channels:
+  - name: "stable"
+    vers: "1.30.1"
+    package: "1.30.1"
+  - name: "beta"
+    vers: "1.31"
+    package: "beta"
+  - name: "nightly"
+    vers: "1.32"
+    package: "nightly"