chrome-extension generator review version

i've made review version before make an official version. please let me know what am i missed. i'd like to try it.

- update and change package files and directory structure like as generator-webapp
 - add directories images/ scripts/
 - config files
 - update package file
 - update and modify gruntfile
   - remove livereload task from watch task
   - remove file list at uglify task (i could find out how to compress each js file, do not merge)
   - add and change file extension to copy task
   - remove requirejs task and useminPrepare (i'm not sure)
- add component.json and add jquery (for test)
- add compress task to build task for package of chrome web store.
- index.js: update copy/template path, categorize the methods

thanks to your advice