Main developer: Juan Carlos Rodriguez-del-Pino, jc.rodriguezdelpino@ulpgc.es

VPL Tokenizer: David Parreño Barbuzano, losedavidpb@gmail.com

Translations:
    Catalan: Antonio Piedras Morente
    Japanese: Imaizumi Takashi
    Polish: Marcin Kolodziej, Michal Kedzia
    German: Lang Michael: michael.lang.ima10@fh-joanneum.at,
            Lückl Bernd: bernd.lueckl.ima10@fh-joanneum.at and
            Lang Johannes: johannes.lang.ima10@fh-joanneum.at
    Estonian: Aivar Annamaa
    Brazilian: Gabriel P. Silva Universidade Federal do Rio de Janeiro
    Italian: Andrea Pruccoli
    Chinese: Computer Science Education group of Beijing Technology and Business University

vpl_evaluate.cpp: Regular Expressions in test cases developed by:
    Daniel José Ojeda Loisel
    Juan David Vega Rodríguez
    Miguel Ángel Viera González
