NzbClub and any indexers with settings are not enabled by default

NzbDrone.Core/Indexers/IIndexer.cs

@@ -7,6 +7,8 @@ namespace NzbDrone.Core.Indexers
     {
         string Name { get; }
 
+        bool EnableByDefault { get; }
+
         IEnumerable<IndexerDefinition> DefaultDefinitions { get; }
 
         IndexerDefinition InstanceDefinition { get; set; }

NzbDrone.Core/Indexers/IndexerBase.cs

@@ -7,6 +7,8 @@ namespace NzbDrone.Core.Indexers
     {
         public abstract string Name { get; }
 
+        public virtual bool EnableByDefault { get { return true; } }
+
         public IndexerDefinition InstanceDefinition { get; set; }
 
         public virtual IEnumerable<IndexerDefinition> DefaultDefinitions

NzbDrone.Core/Indexers/IndexerWithSetting.cs

@@ -7,6 +7,11 @@ namespace NzbDrone.Core.Indexers
     {
         public TSetting Settings { get; set; }
 
+        public override bool EnableByDefault
+        {
+            get { return false; }
+        }
+
         public TSetting ImportSettingsFromJson(string json)
         {
             Settings = Json.Deserialize<TSetting>(json) ?? new TSetting();

NzbDrone.Core/Indexers/NzbClub/NzbClub.cs

@@ -10,6 +10,11 @@ namespace NzbDrone.Core.Indexers.NzbClub
             get { return "NzbClub"; }
         }
 
+        public override bool EnableByDefault
+        {
+            get { return false; }
+        }
+
         public override IParseFeed Parser
         {
             get

NzbDrone.Core/Indexers/Wombles/Wombles.cs

@@ -5,6 +5,11 @@ namespace NzbDrone.Core.Indexers.Wombles
 {
     public class Wombles : IndexerBase
     {
+        public override string Name
+        {
+            get { return "WomblesIndex"; }
+        }
+
         public override IParseFeed Parser
         {
             get
@@ -18,11 +23,6 @@ namespace NzbDrone.Core.Indexers.Wombles
             get { yield return "http://nzb.isasecret.com/rss/?sec=TV&fr=false"; }
         }
 
-        public override string Name
-        {
-            get { return "WomblesIndex"; }
-        }
-
         public override IEnumerable<string> GetEpisodeSearchUrls(string seriesTitle, int seasonNumber, int episodeNumber)
         {
             return new List<string>();