ci: 🎡 update semantic-release setup

BREAKING CHANGE: 🧨 Release new major

Author: streamich

.travis.yml

@@ -16,7 +16,7 @@ matrix:
   allow_failures: []
   fast_finish: true
 after_success:
-  - npm run semantic-release
+  - npx semantic-release
 branches:
   except:
     - /^v\d+\.\d+\.\d+$/

package.json

@@ -27,8 +27,7 @@
   },
   "scripts": {
     "build": "babel src --out-dir lib",
-    "test": "jest",
-    "semantic-release": "semantic-release pre && npm publish && semantic-release post"
+    "test": "jest"
   },
   "dependencies": {},
   "devDependencies": {
@@ -38,9 +37,24 @@
     "babel-cli": "6.26.0",
     "babel-preset-es2015": "6.24.1",
     "source-map-support": "0.5.16",
-    "semantic-release": "15.14.0",
     "@types/jest": "23.3.14",
-    "@types/node": "8.10.59"
+    "@types/node": "8.10.59",
+    "semantic-release": "15.14.0",
+    "@semantic-release/changelog": "3.0.6",
+    "@semantic-release/git": "7.0.18",
+    "@semantic-release/npm": "5.3.5"
+  },
+  "release": {
+    "verifyConditions": [
+      "@semantic-release/changelog",
+      "@semantic-release/npm",
+      "@semantic-release/git"
+    ],
+    "prepare": [
+      "@semantic-release/changelog",
+      "@semantic-release/npm",
+      "@semantic-release/git"
+    ]
   },
   "jest": {
     "collectCoverageFrom": [