The list of keys entered can be in one of 3 formats.
1) CSV Comma seperated values. The Key,Value pairs can be either
enclosed or not enclosed in quotes. Examples.
"_About","About"
"_About Us","About Us"
"_Access denied","Access denied"
"_Account","Account"
"_Account Home","Account Home"
"_Account Info","Account Info"
2) Key = String format. The Key=Value pairs can be either enclosed
or not enclosed in quotes. Examples.
_About = About
_About Us = About Us
_Access denied = Access denied
_Account = Account
_Account Home = Account Home
_Account Info = Account Info
3) PHP array double arrow operator format. The Key => Value pairs
can be either enclosed or not enclosed in quotes. Examples.
'_About' => 'About',
'_About Us' => 'About Us',
'_Access denied' => 'Access denied',
'_Account' => 'Account',
'_Account Home' => 'Account Home',
'_Account Info' => 'Account Info',