Add missing deploy section for travis/snap

.travis.yml

@@ -10,7 +10,18 @@ install:
 script:
 - python setup.py test
 - flake8 vyper/ tests/
+sudo: required
+services:
+- docker
 after_success:
+- coveralls
 - openssl aes-256-cbc -K $encrypted_6ed035d313c9_key -iv $encrypted_6ed035d313c9_iv
   -in .snapcraft/travis_snapcraft.cfg -out .snapcraft/snapcraft.cfg -d
-- coveralls
+deploy:
+  skip_cleanup: true
+  provider: script
+  script: docker run -v $(pwd):$(pwd) -t snapcore/snapcraft sh -c
+    "apt update -qq && cd $(pwd) &&
+    snapcraft && snapcraft push *.snap --release edge"
+  on:
+    branch: master