Merge pull request #11 from assaframan/master

Fixed a "the chicken and the egg paradox": If you get an exception in the constructor - you will not be able to call functions of the class later on.

Author: mythz

src/ServiceStack.Authentication.MongoDB/MongoDBAuthRepository.cs

@@ -52,14 +52,19 @@ private static string Counters_Col
 			}
 		}
 
-		public MongoDBAuthRepository(MongoDatabase mongoDatabase)
+		public MongoDBAuthRepository(MongoDatabase mongoDatabase, bool createMissingCollections)
 		{
 			this.mongoDatabase = mongoDatabase;
 
+			if (createMissingCollections)
+			{
+				CreateMissingCollections();
+			}
+
 			if (!CollectionsExists())
 			{
 				throw new InvalidOperationException("One of the collections needed by MongoDBAuthRepository is missing." +
-													"You can call CreateMissingCollections or DropAndReCreateCollections " +
+													"You can call MongoDBAuthRepository constructor with the parameter CreateMissingCollections set to 'true'  " +
 													"to create the needed collections.");
 			}
 		}