Get settings on empty node fails with ArrayIndexOutOfBoundsException[0]
fixes #2676
only return 404 on actual index settings missing, on "_all", return 200
relates to #2676
Display list of all available site plugins on /_plugins/ end point fix #2664
Revert changes on *Request classes from issue
Relative to #2657
cleanup the pom
[Code refactoring] IndicesStats -> IndicesStatsResponse
fixes #1782
fix typo in exception
Merge pull request #2681 from lukas-vlcek/master

Fix exception typo