Merge pull request #1 from yybest123/master

login signup
add ingnore files
remove unused files
add js file
Merge pull request #2 from yybest123/master

validate login is null
home background img
modify formatter, delete empty lines
add view a group
modify background png
add custom css
add group handler
background images
delete old  background image
limit the list title length
some changes
Profile page
change to direct to me.html
remove app.html