By RICARDO CASTILLO     Monday morning blues and indignation? You bet. Definitely for two independent presidential hopefuls, it was a weekend full of electoral turmoil. Their candidacies were rejected by the National Electoral Institute’s (INE) Committee of Prerogatives and Political Parties, which last Friday decided that pre-candidates Jaime Rodríguez Calderón and Armando Ríos Piter did not meet the minimum of signatures