Transfer fluent-plugin-wendelin shepherding to @klaus

!2 (comment 63248)

fluent-plugin-wendelin.gemspec

 Gem::Specification.new do |gem|
     gem.name            = "fluent-plugin-wendelin"
     gem.version         = "0.3"
-    gem.authors         = ["Kirill Smelkov"]
-    gem.email           = ["kirr@nexedi.com"]
+    gem.authors         = ["Nexedians"]
+    gem.email           = ["klaus@nexedi.com"]
     gem.summary         = %q{Fluentd output to Wendelin}
     gem.description     = %q{Fluentd output plugin to forward data to Wendelin system}
     gem.homepage        = "https://lab.nexedi.com/nexedi/fluent-plugin-wendelin"