Adding default ctors - per NH-2021

SVN: trunk@4911

Author: ayende

src/NHibernate/ADOException.cs

@@ -17,6 +17,10 @@ public class ADOException : HibernateException
 	{
 		private readonly string sql;
 
+	    public ADOException()
+	    {
+	        
+	    }
 		/// <summary>
 		/// Initializes a new instance of the <see cref="ADOException"/> class.
 		/// </summary>

src/NHibernate/Exceptions/GenericADOException.cs

@@ -7,6 +7,10 @@ namespace NHibernate.Exceptions
 	[Serializable]
 	public class GenericADOException : ADOException
 	{
+	    public GenericADOException()
+	    {
+	        
+	    }
 		public GenericADOException(SerializationInfo info, StreamingContext context) : base(info, context) { }
 		public GenericADOException(string message, Exception innerException, string sql) : base(message, innerException, sql) { }
 		public GenericADOException(string message, Exception innerException) : base(message, innerException) { }