Upgrade parser (hope it works)

build.gradle

de.prob.core/build.gradle

parsers/answerparser-2.5.1-uc.jar

parsers/bparser-2.5.1-uc.jar

parsers/cliparser-2.5.1-uc.jar

parsers/eventbalg-2.5.1-uc.jar

parsers/eventbstruct-2.5.1-uc.jar

parsers/ltlparser-2.5.1-uc.jar

parsers/parserbase-2.5.1-uc.jar

parsers/probparsers-2.5.1-uc.jar

parsers/prologlib-2.5.1-uc.jar

parsers/theorymapping-2.5.1-uc.jar

parsers/translator-2.5.1-uc.jar

parsers/unicode-2.5.1-uc.jar