update npm package.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
update bower package.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
add grunt-html-validation plugin

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
ignore html validation error report.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
update html template and add feature list of backbone template.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
add Codeship build status.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
add Browse Happy prompt

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>