set version to 0.5.1
set version to 0.5.1

ftomassetti/java-symbol-solver,xdrop/java-symbol-solver,rpau/java-symbol-solver,javaparser/javasymbolsolver,ftomassetti/java-symbol-solver,xdrop/java-symbol-solver,javaparser/javasymbolsolver,rpau/java-symbol-solver