Using bower package manager.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
clean build folder before release or develop environment.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
Merge pull request #3 from appleboy/patch-1

Add some patch.
add grunt bower package.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
Merge pull request #4 from appleboy/patch

add grunt bower package.