Add a stub .travis.yml

This is at the moment just so that we can use Homu.  In the future I'd
like to make travis just one of multiple PR testers we use.

.travis.yml

@@ -0,0 +1,25 @@
+# We're just using a "stubbed out" Travis right now so we can
+# use Homu <https://github.com/barosl/homu> to auto-squash
+# etc.
+#
+# In the future we'll hook up better tests.
+language: c
+dist: trusty
+addons:
+    apt:
+    packages:
+      - automake
+      - autotools-dev
+script:
+  - env NOCONFIGURE=1 ./autogen.sh
+
+notifications:
+  # This is Colin's personal Homu instance.  We will
+  # also work on productizing this in Project Atomic.
+  webhooks: http://escher.verbum.org:54856/travis
+  email: false
+
+branches:
+  only:
+    - auto
+