Merge pull request #84 from LI-HE/master

disabled backsapce as back button for normal play and index page
Merge pull request #85 from LI-HE/master

send user to home page after logout and resolved the highlight issue
Merge pull request #86 from LI-HE/master

deleted unecessary login from normal play page, user shouldn't be able to login from there
Merge pull request #30 from ChrisBoesch/master

updating my repo..
updating progress bar for practice
Merge pull request #87 from ShaikDawood/master

updating progress bar for practice
Merge pull request #22 from ChrisBoesch/master

update