Add distribution maintainers to maintainers files

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)

MAINTAINERS

@@ -339,7 +339,10 @@ made through a pull request.
 				"dmp42",
 				"vbatts",
 				"joffrey",
-				"samalba"
+				"samalba",
+				"sday",
+				"jlhawn",
+				"dmcg"
 			]
 
 		[Org.Subsystems."build tools"]
@@ -399,6 +402,16 @@ made through a pull request.
 	Email = "ben@firshman.co.uk"
 	Github = "bfirsh"
 
+	[people.dmcg]
+	Name = "Derek McGowan"
+	Email = "derek@docker.com"
+	Github = "dmcgowan"
+
+	[people.dmp42]
+	Name = "Olivier Gambier"
+	Email = "olivier@docker.com"
+	Github = "dmp42"
+
 	[people.ehazlett]
 	Name = "Evan Hazlett"
 	Email = "ejhazlett@gmail.com"
@@ -424,11 +437,26 @@ made through a pull request.
 	Email = "jess@docker.com"
 	Github = "jfrazelle"
 
+	[people.jlhawn]
+	Name = "Josh Hawn"
+	Email = "josh.hawn@docker.com"
+	Github = "jlhawn"
+
+	[people.joffrey]
+	Name = "Joffrey Fuhrer"
+	Email = "joffrey@docker.com"
+	Github = "shin-"
+
 	[people.lk4d4]
 	Name = "Alexander Morozov"
 	Email = "lk4d4@docker.com"
 	Github = "lk4d4"
 
+	[people.sday]
+	Name = "Stephen Day"
+	Email = "stephen.day@docker.com"
+	Github = "stevvooe"
+
 	[people.shykes]
 	Name = "Solomon Hykes"
 	Email = "solomon@docker.com"

graph/MAINTAINERS

@@ -3,3 +3,5 @@ Victor Vieux <vieux@docker.com> (@vieux)
 Michael Crosby <michael@crosbymichael.com> (@crosbymichael)
 Cristian Staretu <cristian.staretu@gmail.com> (@unclejack)
 Tibor Vass <teabee89@gmail.com> (@tiborvass)
+Josh Hawn <josh.hawn@docker.com> (@jlhawn)
+Derek McGowan <derek@docker.com> (@dmcgowan)

registry/MAINTAINERS

@@ -1,5 +1,7 @@
 Sam Alba <sam@docker.com> (@samalba)
 Joffrey Fuhrer <joffrey@docker.com> (@shin-)
-Ken Cochrane <ken@docker.com> (@kencochrane)
 Vincent Batts <vbatts@redhat.com> (@vbatts)
 Olivier Gambier <olivier@docker.com> (@dmp42)
+Josh Hawn <josh.hawn@docker.com> (@jlhawn)
+Derek McGowan <derek@docker.com> (@dmcgowan)
+Stephen Day <stephen.day@docker.com> (@stevvooe)