Merge pull request #4 from wata727/support_github_enterprise

Support GitHub Enterprise

Author: uiur

README.md

@@ -68,6 +68,19 @@ Release {{version}}
 {{/prs}}
 ```
 
+### GitHub Enterprise
+If you use this plugin in GitHub Enterprise, you can specify endpoint domain for GitHub Enterprise.
+
+```javascript
+release({
+  token: 'token'
+  owner: 'uiureo',
+  repo:  'awesome-web-app',
+  template: './template.mustache'
+  endpoint: 'https://github.yourdomain.com/api/v3'
+})
+```
+
 ## Example
 
 ### hubot

lib/github-client.js

@@ -8,10 +8,11 @@ function GithubClient (config) {
   this.token = config.token
   this.head = config.head || 'master'
   this.base = config.base || 'production'
+  this.endpoint = config.endpoint || 'https://api.github.com'
 }
 
 GithubClient.prototype.pullRequestEndpoint = function () {
-  return 'https://api.github.com/repos/' + this.owner + '/' + this.repo + '/pulls'
+  return this.endpoint + '/repos/' + this.owner + '/' + this.repo + '/pulls'
 }
 
 GithubClient.prototype.headers = function () {