Fixed: Excessive memory usage due to sqlite cache configuration.

ref #2296

src/NzbDrone.Core/Datastore/ConnectionStringFactory.cs

@@ -35,7 +35,7 @@ namespace NzbDrone.Core.Datastore
             var connectionBuilder = new SQLiteConnectionStringBuilder();
 
             connectionBuilder.DataSource = dbPath;
-            connectionBuilder.CacheSize = (int)-10.Megabytes();
+            connectionBuilder.CacheSize = (int)-10000;
             connectionBuilder.DateTimeKind = DateTimeKind.Utc;
             connectionBuilder.JournalMode = OsInfo.IsOsx ? SQLiteJournalModeEnum.Truncate : SQLiteJournalModeEnum.Wal;
             connectionBuilder.Pooling = true;