Add support for variable substitution

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/branches/BRANCH_2_0_EXPERIMENTAL/rgoers@1026947 13f79535-47bb-0310-9956-ffa450edef68
20 files changed
tree: 617539ac2953d4c7f456ce42095360dbddd3fd4a
  1. log4j12-api/
  2. log4j2-api/
  3. log4j2-core/
  4. pom.xml