Merge branch 'stable-3.5'

Merge branch 'stable-3.5'

* stable-3.5:
  Prepare 3.5.1-SNAPSHOT builds
  JGit v3.5.0.201409260305-r
  Fix PackWriterBitmapWalker handling non-existing uninteresting objects
  Enable maven site generation for jgit
  Generate javadocs as part of Maven site project reports
  Compare API changes with clirr against 3.4.1
  [cli] Use chaining credentials provider to enable .netrc
  Add chaining credentials provider
  [Java 8] Configure doclint to accept missing descriptions
  Do not use .netrc implicitly if no CredentialsProvider was set
  Prepare post 3.5.0-rc1 builds
  JGit 3.5.0.201409071800-rc1
  Fix the ls-remote command when there is no local repo

Change-Id: Iaa4485cac6ff9c7917380e89e12e416e0f52a557
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>