Code quality and consistency improvements

Here's all the changes I've made in this commit:
- Resolves FS-44 (AutoEject.java)
- Resolves FS-45 (BlockBlocker.java)
- Resolves FS-47 and FS-48 (InteractBlocker.java)
- Resolves FS-49 (Command_cage.java)
- Resolves FS-50 (Command_manageshop.java)
- Resolves FS-51 (Command_notes.java)
- Resolves FS-52 (Command_potion.java)
- Resolves FS-53 (Command_tag.java)
- Resolves FS-55 (ItemFun.java)
- Resolves FS-56 (Module_list.java)
- Resolves FS-57 (Module_players.java)
- Removes redundant code from InteractBlocker.java
- Misc. code consistency corrections (global)

src/main/java/me/totalfreedom/totalfreedommod/httpd/module/Module_list.java

@@ -79,11 +79,20 @@ public class Module_list extends HTTPDModule
                     switch (admin.getRank())
                     {
                         case ADMIN:
+                        {
                             admins.add(player.getName());
                             break;
+                        }
                         case SENIOR_ADMIN:
+                        {
                             senioradmins.add(player.getName());
                             break;
+                        }
+                        default:
+                        {
+                            // Do nothing
+                            break;
+                        }
                     }
                 }
             }

src/main/java/me/totalfreedom/totalfreedommod/httpd/module/Module_players.java

@@ -51,11 +51,20 @@ public class Module_players extends HTTPDModule
             switch (admin.getRank())
             {
                 case ADMIN:
+                {
                     admins.add(username);
                     break;
+                }
                 case SENIOR_ADMIN:
+                {
                     senioradmins.add(username);
                     break;
+                }
+                default:
+                {
+                    // Do nothing
+                    break;
+                }
             }
         }