Update the Composer package.

Signed-off-by: Marios Sotiropoulos <mai1211@uom.edu.gr>
Add NetBeans "run configurations" for the "Authorization Code Issuance" use
case.

Signed-off-by: Marios Sotiropoulos <mai1211@uom.edu.gr>
Prevent exceptions for null Client IDs from being thrown during the relevant
database lookup.

Signed-off-by: Marios Sotiropoulos <mai1211@uom.edu.gr>
Format source code.

Signed-off-by: Marios Sotiropoulos <mai1211@uom.edu.gr>
Validate the "grant_type" parameter for unsupported types.

This parameter refers to the AccessTokenRequest::grantType member.

Signed-off-by: Marios Sotiropoulos <mai1211@uom.edu.gr>
Add method "toUri" to all the Request classes of the Authorization component.

Signed-off-by: Marios Sotiropoulos <mai1211@uom.edu.gr>