Add initial .travis.yml (without artifact upload)

* Does not archive or upload any artifacts

fixes #4

.travis.yml

@@ -0,0 +1,42 @@
+language: lisp
+dist: xenial
+env: PREFIX="$(pwd)/sbcl"
+     SBCL_HOME="$(pwd)/sbcl/lib/sbcl"
+     SBCL="$(pwd)/sbcl/bin/sbcl"
+     SBCL_OPTIONS="--noinform --no-userinit"
+
+install:
+  - curl -L "${SBCL_DOWNLOAD_URL}" | tar -xj
+  - ( cd sbcl-* && INSTALL_ROOT="${PREFIX}" sh install.sh )
+
+  - curl -o cl "${CL_LAUNCH_DOWNLOAD_URL}"
+  - chmod +x cl
+
+  - curl -o quicklisp.lisp "${QUICKLISP_DOWNLOAD_URL}"
+  - ./cl -L quicklisp.lisp '(quicklisp-quickstart:install)'
+
+script:
+  - (
+      cd "${HOME}/quicklisp/local-projects"
+        && git clone https://github.com/scymtym/cl-protobuf
+        && git clone https://github.com/scymtym/network.spread
+        && git clone https://github.com/open-rsx/rsb-cl
+    )
+  - ./cl
+      -S '(:source-registry (:directory "'$(pwd)'") :ignore-inherited-configuration)'
+      -Q
+      -s cl-protobuf
+      -s rsb-formatting-json
+      -s rsb-formatting-png
+      -s rsb-formatting/test
+      -s rsb-tools-common/test
+      -s rsb-stats/test
+      -s rsb-tools-commands/test
+      -s rsb-tools-commands-web/test
+      '(or (mapc (function asdf:test-system)
+                 (list :rsb-formatting/test
+                       :rsb-tools-common/test
+                       :rsb-stats/test
+                       :rsb/tools-commands/test
+                       :rsb/tools-commands-web/test))
+            (uiop:quit -1))'