SCXML-241: bump to latest parent pom and Java 8 minimum
SCXML-241: bump to latest parent pom and Java 8 minimum

apache/commons-scxml,wmudge/commons-scxml,apache/commons-scxml,wmudge/commons-scxml,woonsan/commons-scxml,woonsan/commons-scxml,wmudge/commons-scxml,woonsan/commons-scxml,apache/commons-scxml