Merge pull request #2 from OpenC-IIIT/master

update
Update SRS.txt
Merge pull request #26 from saurg/patch-1

Update SRS.txt
fixes #20
Merge pull request #27 from calmhandtitan/master

fixes issue #20
Updated password_authentication.cpp

Made a complete login screen for user.
It checks if user already exists, if not it registers it as a new user.
It also checks for same username.
(Admin:replace this line with the function to start the game "// enter here the function to start the game" , where ever found).
Merge pull request #28 from himu2214225/master

Updated password_authentication.cpp
Merge pull request #9 from OpenC-IIIT/master

getting update