Move shared roles submodule to common-roles.

.gitmodules

@@ -1,3 +1,3 @@
-[submodule "roles"]
-	path = roles
-	url = git@github.com:csmith/ansible-roles.git
+[submodule "common-roles"]
+	path = common-roles
+	url = https://github.com/DMDirc/ansible-roles.git

ansible.cfg

@@ -1,3 +1,3 @@
 [defaults]
-roles_path = roles
+roles_path = common-roles
 nocows = 1

common-roles

@@ -0,0 +1 @@
+Subproject commit 3cc8a8a9a95aea9048fb7c3625a13be56f44e406

roles

@@ -1 +0,0 @@
-Subproject commit 65e4474ccbc666cf02fee49c2eb8e5727c986b29