Fixing issue #21

Former-commit-id: f09d05ba437057089a2b4e3798156611f6a37072

src/ImageProcessor.Web/NET45/Caching/MemCache.cs

@@ -181,7 +181,8 @@ namespace ImageProcessor.Web.Caching
 
                 if (isRemoved)
                 {
-                    CacheItems.Keys.Remove(key);
+                    string removedValue;
+                    CacheItems.TryRemove(key, out removedValue);
                 }
             }
 
@@ -228,7 +229,8 @@ namespace ImageProcessor.Web.Caching
                     // Loop through and clear out the dictionary of cache keys.
                     foreach (KeyValuePair<string, string> cacheItem in tempDictionary)
                     {
-                        CacheItems.Keys.Remove(cacheItem.Key);
+                        string removedValue;
+                        CacheItems.TryRemove(cacheItem.Key, out removedValue);
                     }
                 }
             }
@@ -237,4 +239,4 @@ namespace ImageProcessor.Web.Caching
         }
         #endregion
     }
-}
+}

src/ImageProcessor.Web/NET45/Properties/AssemblyInfo.cs

@@ -31,5 +31,6 @@ using System.Runtime.InteropServices;
 //
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
-[assembly: AssemblyVersion("3.0.0.0")]
-[assembly: AssemblyFileVersion("3.0.0.0")]
+[assembly: AssemblyVersion("3.0.0.1")]
+[assembly: AssemblyFileVersion("3.0.0.1")]
+