Call hyperrogue after build, as a smoke test

AMDmi3 · AMDmi3 · commit 823930a1cf0a · 2018-06-26T15:48:54.000+03:00
diff --git a/.travis.yml b/.travis.yml
@@ -16,3 +16,4 @@ script:
   - ./configure
   - make
   - sudo make install
+  - ./hyperrogue --help
