Code cleanup.

Author: michaellwest

src/Spe/Core/Settings/ApplicationSettings.cs

@@ -156,10 +156,7 @@ public static ApplicationSettings GetInstance(string applicationName, bool perso
             ApplicationSettings instance = null;
             lock (instances)
             {
-                if (instances.ContainsKey(settingsPath))
-                {
-                    instance = instances[settingsPath];
-                }
+                instances.TryGetValue(settingsPath, out instance) ;
                 if (instance == null || !instance.Loaded)
                 {
                     instance = new ApplicationSettings(applicationName, personalizedSettings);

src/Spe/Core/Settings/Authorization/ScriptItemSecurityEventHandler.cs

@@ -48,7 +48,6 @@ public void OnEvent(object sender, EventArgs args)
                 }
             }
 
-
             if (!SessionElevationManager.IsSessionTokenElevated(ApplicationNames.ItemSave))
             {
                 SessionElevationErrors.OperationRequiresElevation();

src/Spe/Core/Settings/Authorization/SessionElevationManager.cs

@@ -57,7 +57,8 @@ static SessionElevationManager()
 
         internal static TokenDefinition GetToken(string appName)
         {
-            return Tokens.ContainsKey(appName) ? Tokens[appName] : Tokens["Default"];
+            if (Tokens.TryGetValue(appName, out var token)) return token;
+            return Tokens["Default"];
         }
 
         public static bool IsSessionTokenElevated(string appName)

src/Spe/Core/Settings/Authorization/WebServiceSettings.cs

@@ -11,14 +11,13 @@ namespace Spe.Core.Settings.Authorization
 {
     public static class WebServiceSettings
     {
-
         private class ServiceState
         {
             public bool Enabled { get; set; }
             public bool RequireSecureConnection { get; set; }
         }
 
-        private static Dictionary<string,ServiceState> services = new Dictionary<string,ServiceState>();
+        private static readonly Dictionary<string,ServiceState> services = new Dictionary<string,ServiceState>();
 
         public const string ServiceRestfulv1 = "restfulv1";
         public const string ServiceRestfulv2 = "restfulv2";
@@ -66,7 +65,7 @@ static WebServiceSettings()
 
         public static bool IsEnabled(string serviceName)
         {
-            if (!services.Keys.Contains(serviceName))
+            if (!services.ContainsKey(serviceName))
             {
                 return false;
             }