Members: Bu ruxue, Li bo, Xu xiaochen, Yang tianxiao, Zhao zihao
first, you need to install npm and bower
cd to root directory, "(sudo) bower install"
in root directory not app use, run “python -m SimpleHTTPServer” to run local host
open browser at "localhost:8000" Building a custom Google Sign-In button: https://developers.google.com/identity/sign-in/web/build-button#customizing_the_automatically_rendered_sign-in_button_recommended
Gmail API Client Libraries: https://developers.google.com/gmail/api/downloads