Add extra parameters for completion commands.

The 2 new parameters are:
   - [owner] - the owner of island.
   - [name] - the name of the island.

Fixes #304

src/main/java/world/bentobox/challenges/tasks/TryToComplete.java

@@ -791,17 +791,25 @@ public class TryToComplete
     private void runCommands(List<String> commands)
     {
         // Ignore commands with this perm
-        if (user.hasPermission(this.permissionPrefix + "command.challengeexempt") && !user.isOp())
+        if (this.user.hasPermission(this.permissionPrefix + "command.challengeexempt") && !this.user.isOp())
         {
             return;
         }
+
+        final Island island = this.addon.getIslandsManager().getIsland(this.world, this.user);
+        final String owner = island == null ? "" : this.addon.getPlayers().getName(island.getOwner());
+
         for (String cmd : commands)
         {
             if (cmd.startsWith("[SELF]"))
             {
                 String alert = "Running command '" + cmd + "' as " + this.user.getName();
                 this.addon.getLogger().info(alert);
-                cmd = cmd.substring(6).replace(Constants.PARAMETER_PLAYER, this.user.getName()).trim();
+                cmd = cmd.substring(6).
+                    replaceAll(Constants.PARAMETER_PLAYER, this.user.getName()).
+                    replaceAll(Constants.PARAMETER_OWNER, owner).
+                    replaceAll(Constants.PARAMETER_NAME, island == null || island.getName() == null ? "" : island.getName()).
+                    trim();
                 try
                 {
                     if (!user.performCommand(cmd))
@@ -816,11 +824,17 @@ public class TryToComplete
 
                 continue;
             }
+
             // Substitute in any references to player
+
             try
             {
-                if (!this.addon.getServer().dispatchCommand(this.addon.getServer().getConsoleSender(),
+                cmd = cmd.replaceAll(Constants.PARAMETER_PLAYER, this.user.getName()).
-                    cmd.replace(Constants.PARAMETER_PLAYER, this.user.getName())))
+                    replaceAll(Constants.PARAMETER_OWNER, owner).
+                    replaceAll(Constants.PARAMETER_NAME, island == null || island.getName() == null ? "" : island.getName()).
+                    trim();
+
+                if (!this.addon.getServer().dispatchCommand(this.addon.getServer().getConsoleSender(), cmd))
                 {
                     this.showError(cmd);
                 }

src/main/resources/template.yml

@@ -88,6 +88,10 @@ challenges:
       # It is not necessary to writhe `/`.
       # This examples first command will force player to execute `/island` command,
       # While second command will run `/kill [player]` from the server console.
+      # There are 3 available parameters for commands:
+      #    - [player] - player who completed the challenge
+      #    - [owner] - the island owner
+      #    - [name] - the name of the island.
       commands:
         - island
         - kill [player]
@@ -122,6 +126,10 @@ challenges:
       # It is not necessary to writhe `/`.
       # This examples first command will force player to execute `/island` command,
       # While second command will run `/kill [player]` from the server console.
+      # There are 3 available parameters for commands:
+      #    - [player] - player who completed the challenge
+      #    - [owner] - the island owner
+      #    - [name] - the name of the island.
       commands:
         - island
         - kill [player]
@@ -220,6 +228,10 @@ challenges:
       # It is not necessary to writhe `/`.
       # This examples first command will force player to execute `/island` command,
       # While second command will run `/kill [player]` from the server console.
+      # There are 3 available parameters for commands:
+      #    - [player] - player who completed the challenge
+      #    - [owner] - the island owner
+      #    - [name] - the name of the island.
       commands:
         - island
         - kill [player]
@@ -254,6 +266,10 @@ challenges:
       # It is not necessary to writhe `/`.
       # This examples first command will force player to execute `/island` command,
       # While second command will run `/kill [player]` from the server console.
+      # There are 3 available parameters for commands:
+      #    - [player] - player who completed the challenge
+      #    - [owner] - the island owner
+      #    - [name] - the name of the island.
       commands:
         - island
         - kill [player]
@@ -339,6 +355,10 @@ challenges:
       # It is not necessary to writhe `/`.
       # This examples first command will force player to execute `/island` command,
       # While second command will run `/kill [player]` from the server console.
+      # There are 3 available parameters for commands:
+      #    - [player] - player who completed the challenge
+      #    - [owner] - the island owner
+      #    - [name] - the name of the island.
       commands:
         - island
         - kill [player]
@@ -373,6 +393,10 @@ challenges:
       # It is not necessary to writhe `/`.
       # This examples first command will force player to execute `/island` command,
       # While second command will run `/kill [player]` from the server console.
+      # There are 3 available parameters for commands:
+      #    - [player] - player who completed the challenge
+      #    - [owner] - the island owner
+      #    - [name] - the name of the island.
       commands:
         - island
         - kill [player]
@@ -464,6 +488,10 @@ challenges:
       # It is not necessary to writhe `/`.
       # This examples first command will force player to execute `/island` command,
       # While second command will run `/kill [player]` from the server console.
+      # There are 3 available parameters for commands:
+      #    - [player] - player who completed the challenge
+      #    - [owner] - the island owner
+      #    - [name] - the name of the island.
       commands:
         - island
         - kill [player]
@@ -498,6 +526,10 @@ challenges:
       # It is not necessary to writhe `/`.
       # This examples first command will force player to execute `/island` command,
       # While second command will run `/kill [player]` from the server console.
+      # There are 3 available parameters for commands:
+      #    - [player] - player who completed the challenge
+      #    - [owner] - the island owner
+      #    - [name] - the name of the island.
       commands:
         - island
         - kill [player]
@@ -551,6 +583,10 @@ levels:
       # It is not necessary to writhe `/`.
       # This examples first command will force player to execute `/island` command,
       # While second command will run `/kill [player]` from the server console.
+      # There are 3 available parameters for commands:
+      #    - [player] - player who completed the challenge
+      #    - [owner] - the island owner
+      #    - [name] - the name of the island.
       commands:
         - island
         - kill [player]