applied patch from Christian Grobmeier

https://issues.apache.org/jira/browse/SANDBOX-241

added the cpio implementation,
added a cpio archive and improved the testcases,
some nitpicking



git-svn-id: https://svn.apache.org/repos/asf/commons/sandbox/compress/trunk@733684 13f79535-47bb-0310-9956-ffa450edef68
15 files changed
tree: da989af7d33a1bd4d2e2e52e79e168710f93abd0
  1. src/
  2. LICENSE.txt
  3. NOTICE.txt
  4. pom.xml