chore: remove prepublish script and migrate to travis hook

.travis.yml

@@ -7,6 +7,8 @@ cache:
   - node_modules
 notifications:
   email: false
+before_deploy:
+  - ./bin/semantic-release pre
 deploy:
   provider: npm
   email: stephan@boennemann.me

README.md

@@ -11,13 +11,16 @@ npm i semantic-release
 
 `semantic-release` provides "prepublish" and "postpublish" hooks so you automatically release the correct version.
 
-Add this to your `package.json` for maximum comfort:
+Run `semantic-release pre` right before `npm publish` and `semantic-release post` right after. 
+
+The post hook is automatable in `package.json` with a "postpublish" script:
 ```json
 "scripts": {
-  "prepublish": "semantic-release pre",
   "postpublish": "semantic-release post"
 }
 ```
 
+This is currently not possible for the "prepublish" hook. See [npm/npm#7118](https://github.com/npm/npm/issues/7118).
+
 MIT License
 2015 Stephan Bönnemann

package.json

@@ -1,7 +1,6 @@
 {
   "name": "semantic-release",
   "description": "semantic semver compliant package publishing",
-  "version": "0.0.0",
   "author": "Stephan Bönnemann <stephan@boennemann.me>",
   "bin": "./bin/semantic-release",
   "bugs": {
@@ -35,7 +34,6 @@
   },
   "scripts": {
     "postpublish": "./bin/semantic-release post",
-    "prepublish": "./bin/semantic-release pre",
     "test": "standard"
   }
 }