add travis config

.travis.yml

@@ -0,0 +1,11 @@
+sudo: enabled
+os: osx
+language: c
+
+install:
+- git clone https://github.com/cc65/cc65 /tmp/cc65 &&
+  sudo make -C /tmp/cc65 ca65 ld65 avail &&
+  ca65 --version
+
+script:
+- make