Added the ability to add owners/members to the global region for handling guest groups.

src/main/java/com/sk89q/worldguard/protection/ApplicableRegionSet.java

@@ -164,9 +164,15 @@ private boolean internalGetState(StateFlag flag, LocalPlayer player,
             
             // The global region has this flag set
             if (globalState != null) {
+                // Special case for the build flag
+                if (player != null && globalRegion.hasMembersOrOwners()) {
+                    def = globalRegion.isMember(player)
+                            ? (globalState == State.ALLOW) : false;
+                } else {
                     def = (globalState == State.ALLOW);
                 }
             }
+        }
         
         // The player argument is used if and only if the flag is the build
         // flag -- in which case, if there are any regions in this area, we

src/main/java/com/sk89q/worldguard/protection/regions/ProtectedRegion.java

@@ -168,7 +168,6 @@ public void setOwners(DefaultDomain owners) {
      * @return the members
      */
     public DefaultDomain getMembers() {
-
         return members;
     }
 
@@ -179,11 +178,20 @@ public void setMembers(DefaultDomain members) {
         this.members = members;
     }
 
+    /**
+     * Checks whether a region has members or owners.
+     * 
+     * @return whether there are members or owners
+     */
+    public boolean hasMembersOrOwners() {
+        return owners.size() > 0 || members.size() > 0;
+    }
+    
     /**
      * Checks whether a player is an owner of region or any of its parents.
      * 
-     * @param player
-     * @return
+     * @param player player to check
+     * @return whether an owner
      */
     public boolean isOwner(LocalPlayer player) {
         if (owners.contains(player)) {
@@ -202,12 +210,12 @@ public boolean isOwner(LocalPlayer player) {
         return false;
     }
 
-
     /**
-     * Checks whether a player is a member of the region or any of its parents.
+     * Checks whether a player is a member OR OWNER of the region
+     * or any of its parents.
      * 
-     * @param player
-     * @return
+     * @param player player to check
+     * @return whether an owner or member
      */
     public boolean isMember(LocalPlayer player) {
         if (owners.contains(player) || members.contains(player)) {
@@ -227,6 +235,30 @@ public boolean isMember(LocalPlayer player) {
         return false;
     }
 
+    /**
+     * Checks whether a player is a member of the region
+     * or any of its parents.
+     *
+     * @param player player to check
+     * @return whether an member
+     */
+    public boolean isMemberOnly(LocalPlayer player) {
+        if (members.contains(player)) {
+            return true;
+        }
+
+        ProtectedRegion curParent = getParent();
+        while (curParent != null) {
+            if (curParent.getMembers().contains(player)) {
+                return true;
+            }
+
+            curParent = curParent.getParent();
+        }
+
+        return false;
+    }
+    
     /**
      * Get a flag's value.
      *