Fix button label in welcome page
Fix button label in welcome page

The buttons show only "open_subpage" and "back_home", although a label
is specified.

tonyle/tonyframework,OmarElGabry/framework,tonyle/tonyframework,nekomajin/framework,LuckyCyborg/framework,mxloco/framework,danvers/enrollment-tool,simple-mvc-framework/framework,LuckyCyborg/simple-mvc-framework,ahmedyassinamr/framework,nova-framework/framework,tonyle/tonyframework,XTRO123/framework,capps1994/framework,LuckyCyborg/framework,ennerperez/simple-mvc-framework,ahmedyassinamr/framework,XTRO123/framework,simple-mvc-framework/framework,danvers/enrollment-tool,nova-framework/framework,geomorillo/framework,enjoy2000/framework,volter9/framework-1,geomorillo/framework,LuckyCyborg/simple-mvc-framework,pacozaa/framework,mxloco/framework,tomvlk/php-framework,lcscgit/framework,enjoy2000/framework,ennerperez/simple-mvc-framework,LuckyCyborg/simple-mvc-framework,nekomajin/framework,volter9/framework-1,tomvlk/php-framework,OmarElGabry/framework,danvers/enrollment-tool,pacozaa/framework,LuckyCyborg/simple-mvc-framework,geomorillo/framework,XTRO123/framework,capps1994/framework,lcscgit/framework