GitLab: Add MEMBER_MAINTAINER level to replace deprecated MEMBER_MASTER

GitLab.pm

@@ -39,6 +39,7 @@ our %EXPORT_TAGS = (
         MEMBER_REPORTER
         MEMBER_DEVELOPER
         MEMBER_MASTER
+        MEMBER_MAINAINER
         MEMBER_OWNER
     )],
 
@@ -74,7 +75,7 @@ use constant {
     MEMBER_GUEST => 10,
     MEMBER_REPORTER => 20,
     MEMBER_DEVELOPER => 30,
-    MEMBER_MASTER => 40,
+    MEMBER_MAINTAINER => 40,
     MEMBER_OWNER => 50,
 
     # Project Visibility
@@ -83,6 +84,11 @@ use constant {
     PROJECT_PUBLIC => "public",
 };
 
+sub MEMBER_MASTER {
+    carp "MEMBER_MASTER is deprecated, use MEMBER_MAINTAINER instead";
+    return MEMBER_MAINTAINER;
+}
+
 use constant GROUP_VISIBILITY => (
     GROUP_PRIVATE,
     GROUP_INTERNAL,
@@ -93,7 +99,7 @@ use constant MEMBER_ACCESS => (
     MEMBER_GUEST,
     MEMBER_REPORTER,
     MEMBER_DEVELOPER,
-    MEMBER_MASTER,
+    MEMBER_MAINTAINER,
     MEMBER_OWNER,
 );
 
@@ -190,9 +196,12 @@ Import with C<:member_access> tag.
     10 MEMBER_GUEST
     20 MEMBER_REPORTER
     30 MEMBER_DEVELOPER
-    40 MEMBER_MASTER
+    40 MEMBER_MAINTAINER
     50 MEMBER_OWNER
 
+There is also a deprecated C<MEMBER_MASTER> level with the same value as
+C<MEMBER_MAINTAINER>. It will be removed from future releases of this API.
+
 =head3 Project Visibility
 
 Import with C<:project_visibility> tag.