bring travis back

.travis.yml

@@ -0,0 +1,16 @@
+sudo: false
+env:
+  matrix:
+  - BROWSER=chromium EXT=zip
+  - BROWSER=firefox EXT=xpi
+script: ./tools/make-${BROWSER}.sh all
+deploy:
+  provider: releases
+  api_key:
+    secure: EnAMNsPbnS2I0JDkCWiY/6WLERsUbE2Ni5j9ap8YbZt4+sJv7aSoufWZ+0TZvSwr/w5MKCCDKhwXaPfbUwvqrI+eZv6LBXhwajK9Zla25FVjtdGCwKXQ3ZU85PHgL+5FYtuSGACmQj/ruAdSgrI7PgS08e5lqSgEk6lY4y3/6fE=
+  file: dist/build/uBlock.${BROWSER}.${EXT}
+  skip_cleanup: true
+  on:
+    repo: gorhill/uBlock
+    tags: true
+    all_branches: true