Remove lexer and parser, and add sudo: required, in Travis-CI config.
Remove lexer and parser, and add sudo: required, in Travis-CI config.

mittinatten/freesasa,JoaoRodrigues/freesasa,JoaoRodrigues/freesasa,mittinatten/freesasa,mittinatten/freesasa,JoaoRodrigues/freesasa,JoaoRodrigues/freesasa,mittinatten/freesasa