Update subprojects/plugins/src/main/groovy/org/gradle/api/tasks/applicat...

...ion/CreateStartScripts.groovy

Added another classpath option, useful for creating conf directories (which shouldn't be in lib!)

for example:
startScripts.classpath.add(files('conf'))

adds conf dir in lib

startScripts.additionalClasspath.add(files('conf'))

adds conf in $APP_HOME