SLING-5971 servlet-helpers: Update to Servlet API 3.1

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1756522 13f79535-47bb-0310-9956-ffa450edef68
6 files changed
tree: 23476d2a100c31e3271be8131ffbc7b49df17672
  1. src/
  2. pom.xml
  3. README.txt