Build: Introduce sematic-release with commitizen

We are now using semantic-release with the eslint commit message rules
re #26

Author: Markus Günther

.releaserc

@@ -0,0 +1,6 @@
+{
+    "branch": "master",
+    "analyzeCommits": {
+        "preset": "eslint"
+    }
+}

.travis.yml

@@ -2,10 +2,21 @@ language: node_js
 sudo: false
 cache:
   directories:
+    - ~/.npm
     - node_modules
+notifications:
+  email: false
 node_js:
-  - "node"
+  - '10'
+  - '9'
+  - '8'
+  - '6'
 before_install:
   - curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 1.9.4
   - export PATH="$HOME/.yarn/bin:$PATH"
   - yarn global add babel-cli
+after_success:
+  - npm run travis-deploy-once "npm run semantic-release"
+branches:
+  except:
+    - /^v\d+\.\d+\.\d+$/

package.json

@@ -7,7 +7,7 @@
   "author": "Javi Velasco <javier.velasco86@gmail.com> (http://javivelasco.com/)",
   "repository": {
     "type": "git",
-    "url": "git+https://github.com/FriendsOfReactJS/react-css-themr.git"
+    "url": "https://github.com/FriendsOfReactJS/react-css-themr.git"
   },
   "bugs": {
     "url": "https://github.com/FriendsOfReactJS/react-css-themr/issues"
@@ -33,6 +33,9 @@
     "babel-preset-es2015": "^6.24.1",
     "babel-preset-react": "^6.24.1",
     "babel-preset-stage-0": "^6.24.1",
+    "commitizen": "^2.10.1",
+    "conventional-changelog-eslint": "^3.0.0",
+    "cz-adapter-eslint": "^0.1.2",
     "eslint": "^5.3.0",
     "eslint-config-prettier": "^3.0.0",
     "eslint-plugin-prettier": "^2.6.2",
@@ -45,7 +48,9 @@
     "react": "^16.4.2",
     "react-dom": "^16.4.2",
     "rimraf": "^2.6.2",
-    "sinon": "^6.1.4"
+    "semantic-release": "^15.9.8",
+    "sinon": "^6.1.4",
+    "travis-deploy-once": "^5.0.2"
   },
   "files": [
     "index.d.ts",
@@ -58,7 +63,10 @@
     "lint-check": "eslint --print-config .eslintrc.js | eslint-config-prettier-check",
     "prepublish": "rimraf lib && npm run build",
     "test": "jest",
-    "test:watch": "npm test -- --watch"
+    "test:watch": "npm test -- --watch",
+    "travis-deploy-once": "travis-deploy-once",
+    "semantic-release": "semantic-release",
+    "commit": "git-cz"
   },
   "license": "MIT",
   "peerDependencies": {
@@ -72,5 +80,10 @@
   "jest": {
     "verbose": true,
     "testURL": "http://localhost/"
+  },
+  "config": {
+    "commitizen": {
+      "path": "./node_modules/cz-adapter-eslint"
+    }
   }
 }