Fixed type conversion bug in GetAttributes method.
Added unit test for TypeAccessor implementation of ITypeDescriptionProvider.GetAttributes.
Postgresql has also sequene feature. This code allows to use sequences as insertions.
To enable sequence insert in posgresql mapping can be done like
[TableName(Owner="public", Name="testTable")]
	public partial class testTable
	{
		[PrimaryKey(1), SequenceName("table_seq"), Identity] 
		public Int32    id            { get; set; } 
		public String   name       { get; set; } // character varying(40)(40)
	}
Added support for XElement to/from string.
Merge branch 'master' of https://github.com/igor-tkachev/bltoolkit
Added #if for using of System.Xml.Linq
Added #pragma to disable 0618 warning since Table.Walk is Obsolete but is called anyway internally.
Fix invalid cast exception if inner exception is DataExeption
Fix invalid cast exception
Improved Insert support.
Fixed interface inheritance issue. #92.
Fixed compare with enum issue.
Merge branch 'pr/n97_gmlexx'
Merge branch 'pr/n88_BryanEllis'
Improved generating for left join expressions.
Merge branch 'master' into pr/n86_llyys
Added support sequences for PostgreSQL.
Added support sequences for PostgreSQL.
New test. Closes #96.
Fixed #93.