Fix wrong version reported by "bin/pegjs --version"
Fix wrong version reported by "bin/pegjs --version"

DRY: Now the version is stored only in the VERSION file.

luisvt/pegjs,pegjs/pegjs,GerHobbelt/pegjs,crguezl/pegjs,wwall/pegjs-fn,jlturner/pegjs,jlturner/pegjs,GerHobbelt/pegjs,mcanthony/pegjs,Sciumo/pegjs,Mingun/pegjs,Sciumo/pegjs,wwall/pegjs-fn,crguezl/pegjs,luisvt/pegjs,mcanthony/pegjs,Mingun/pegjs,pegjs/pegjs