fixed scope error on user credential grant

had to add column to database in the oauth_users table, noted the change in
the readme file.
moved hardcoded username and password to the config file.
updated link to only include the needed params ie the ones accessible in the
config file.
cleaned up code, fixed whitespaces, linebreaks, etc.
Update .gitignore to include composer.lock and remove netbeans project folder
Change title of server sice application
Update the routes for all token requests to use same parameter