Updating version in package.json and adding CHANGELOG.md documentation.

Author: Joe Turgeon

CHANGELOG.md

@@ -1,6 +1,6 @@
 # CHANGELOG
 
-## v0.9.0-pre [2015/11/xx]
+## v0.9.0 [2015/11/18]
 
 - Added the ability to [define scripts for common project operations](https://github.com/phase2/grunt-drupal-tasks/blob/master/CONFIG.md#project-operations).
 - Added `grunt install` task to [easily install the site cleanly or with an
@@ -11,8 +11,7 @@ validation task is run against staged code before a commit is made.
 - If index.php is missing from the build destination, then the Drush make task
 is always run (and the "newer" feature is disabled). This facilitates certain VM
 configurations.
-- PHPCS is not run if there are no source files to prevent an issue with it
-hanging and failing.
+- PHPCS and eslint tasks are skipped if there are no source files.
 
 ### Upgrade Notes
 

package.json

@@ -1,7 +1,7 @@
 {
   "name": "grunt-drupal-tasks",
   "description": "A Grunt plugin to automate Drupal build and testing tasks.",
-  "version": "0.9.0-pre",
+  "version": "0.9.0",
   "main": "bootstrap.js",
   "dependencies": {
     "grunt-available-tasks": "0.6.1",