Add extension command support, with test in SystemPropertyCommand and launcher-test.crank.txt

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1595220 13f79535-47bb-0310-9956-ffa450edef68
2 files changed
tree: 8e7375b97682f185b78b2e583fc72452ef04eb6b
  1. src/
  2. pom.xml