Fix semantic release run

.travis.yml

@@ -14,7 +14,7 @@ before_install:
 before_script:
   - npm prune
 after_success:
-  - npm run semantic-release
+  - npx semantic-release
 branches:
   except:
     - /^v\d+\.\d+\.\d+$/

package.json

@@ -17,7 +17,6 @@
     "travis": "npm run check-dependencies && npm test",
     "unit": "./bin/units",
     "validate": "npm ls",
-    "semantic-release": "semantic-release pre && npm publish && semantic-release post",
     "config": "node -e \"console.log(JSON.stringify(require( 'pelias-config' ).generate(require('./schema')), null, 2))\"",
     "check-dependencies": "node_modules/.bin/npm-check --production --ignore pelias-interpolation",
     "prune": "npm prune"