Refresh travis.yml, add publishing

Author: tailhook

.travis.yml

@@ -1,24 +1,34 @@
-language: rust
-rust:
-- 1.0.0
-- 1.1.0
-- 1.2.0
-- stable
-- beta
-- nightly
 sudo: false
-env:
-  secure: "lWnOk8yrzYf+QAR7d9LNvFnGrBmCGypev+Li4DXWitbOCacVTWYFGmcuZt7qy5hl1D56N5Y17xI9elyM4CPsoxiK/KxyQd80rnZKZgmhh+bQdw3LEEbqnA+acmNa7aEfIBlzFlk3ru2COZioQVih2sFqYrkaWGgCB3JH7o7AQT8="
-script:
-- cargo build --verbose
-# don't run doc tests because they don't run well for macros
-- cargo test test --verbose
-after_success: |
-  [ $TRAVIS_RUST_VERSION = stable ] &&
-  [ $TRAVIS_BRANCH = master ] &&
-  [ $TRAVIS_PULL_REQUEST = false ] &&
-  cargo doc &&
-  echo "<meta http-equiv=refresh content=0;url=argparse/index.html>" > target/doc/index.html &&
-  pip install ghp-import --user &&
-  ~/.local/bin/ghp-import -n target/doc &&
-  git push -fq https://${GH_TOKEN}@github.com/${TRAVIS_REPO_SLUG}.git gh-pages
+dist: trusty
+language: rust
+
+cache:
+- cargo
+
+before_cache:
+- rm -r $TRAVIS_BUILD_DIR/target/debug
+
+jobs:
+  include:
+  - os: linux
+    rust: stable
+  - os: linux
+    rust: beta
+  - os: linux
+    rust: nightly
+
+  # deploy
+  - stage: publish
+    os: linux
+    rust: stable
+    env:
+    # CARGO_TOKEN
+    - secure: "tk6bJEv46YfZwAKYzxn9+afzEb6nGym9lo/YJgjYIolv2qsNyMLlmC8ptRSRTHwOQPd3c54Y9XYP+61miMmWjppQSjJ4yvkUqnyiYzzdxzVM5dNIbXcqO6GbTgE2rIx9BOH0c/qrmw1KW2iz8TChxgQu/vv8pmDL1kmyawVy3EE="
+    install: true
+    script: true
+
+    deploy:
+    - provider: script
+      script: 'cargo publish --verbose --token=$CARGO_TOKEN'
+      on:
+        tags: true