my first commit
change the index
remove the node_module
delete node package
change login page/ register page
update config
modify git ignore
change counting down, include seconds
Merge branch 'server-branch' of github.com:GCat12138/GCat into server-branch

Conflicts:
	app/main/views.py
modify the register style
add extensions flask-mail
Merge branch 'server-branch' of github.com:GCat12138/GCat into server-branch