Bump to version 0.3.0

Version 0.3.0 adds the Slate theme and the Seti theme.

Author: Tony Crisci

package.json

@@ -26,7 +26,7 @@
     "mocha": "*",
     "chai": "*"
   },
-  "version": "0.2.3",
+  "version": "0.3.0",
   "description": "Make your i3wm config a little more stylish",
   "devDependencies": {},
   "scripts": {