Gets lots of the new installer logic working

src/Umbraco.Web/Install/InstallStepCollection.cs

@@ -1,49 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Collections.Specialized;
-
-namespace Umbraco.Web.Install
-{
-    internal class InstallerStepCollection : Dictionary<string, InstallerStep>
-    {
-        public void Add(InstallerStep step){
-            step.Index = this.Count;
-            this.Add(step.Alias, step);
-        }
-  
-        public InstallerStep Get(string key)
-        {
-            return this.First(item => item.Key == key).Value;
-        }
-
-        public bool StepExists(string key)
-        {
-            return this.ContainsKey(key);
-        }
-
-        public InstallerStep GotoNextStep(string key)
-        {
-          var s = this[key];
-          foreach(var i in this.Values){
-
-             // System.Web.HttpContext.Current.Response.Write(i.Index.ToString() + i.Alias);
-
-            if (i.Index > s.Index && !i.Completed()) {
-               // System.Web.HttpContext.Current.Response.Write( "FOUND" +  i.Index.ToString() + i.Alias);
-                return i;
-            }
-          }
-  
-          return null;
-        }
-    
-
-        public InstallerStep FirstAvailableStep()
-        {
-            return this.First(item => item.Value.Completed() == false ).Value;
-        }
-    }
-}
-