Build hub prerelease

Signed-off-by: Stephen Gallagher <sgallagh@redhat.com>

hub.yaml

@@ -0,0 +1,37 @@
+---
+document: modulemd
+version: 2
+data:
+  summary: A command-line wrapper for git with github shortcuts
+  description: >-
+    hub is a command line tool that wraps `git` in order to extend it with extra
+    features and commands that make working with GitHub easier.
+
+        $ hub clone rtomayko/tilt
+
+        # expands to:
+        $ git clone git://github.com/rtomayko/tilt.git
+  license:
+    module:
+    - MIT
+  dependencies:
+  - buildrequires:
+      platform: []
+    requires:
+      platform: []
+  references:
+    community: https://hub.github.com
+    documentation: https://hub.github.com
+    tracker: https://github.com/github/hub/issues
+  profiles:
+    default:
+      rpms:
+      - hub
+  api:
+    rpms:
+    - hub
+  components:
+    rpms:
+      hub:
+        rationale: A command-line wrapper for git with github shortcuts
+        ref: pre-release