Added files and created functions for SSO login and registration
Added forum name and api key update description.
Added logout_example.php file.
Implimented logout.
Added comments.
Add commets and variavle name change.
Created a function forumSignout().
Initialize session to store authtoken.
Added comments.
Added logout_example.php file
Removed comments.
change in comments.
Added comments and some changes
made changes in file path
Change username
Added comments in details
change path to master to open files
change comments
convert file format .
fixed indent
Correct  brackets position.
Made changes to feedback.
Merge pull request #1 from webtoolbox/enh_sso_change

Enhhancement: PHP Single Sign On