Checkstyle 6.11.1

[Roman Ivanov]

Checkstyle Release 6.11.1 - http://checkstyle.sourceforge.net/releasenotes.html#Release_6.11.1

Bug fixes:

  Add lambda support to Indentation check.

Notes:

  Coverage has been increased to 100% in 'checks' package.

  Resolve Doxia Site Renderer warnings.

  Update plexus-compiler-javac-errorprone to 2.6.

  Update JGit to 4.0.2.201509141540-r.

  Fix release failure due to unknown Javadoc tag.