NDatabase 3.1.0

(+) - NDatabase as In-Memory Database (see documentation page - http://ndatabase.net/index.html?in_memory_database.html) (U) - remove app.config files from samples (see issue - http://ndatabase.codeplex.com/workitem/897) (+) - New project home page - http://ndatabase.wix.com/home (+) - New project documentation page - [url:]http://ndatabase.net/] (U) - Updating and adding xml documenation which covers all public api (U) - performance improvements in seeking the file (changing position happen only just before reading or writing) (U) - minor cleanup (remove unused things, update access levels) (U) - improve design of Northwind sample - extract typed data context to another library (U) - move NonPersistentAttribute to Odb.Core namespace (U) - move IConstraint to Odb.Core.Query namespace (U) - move IRefactorManager to Odb.Core namespace (U) - Move all exception or error related classes under NDatabase.Exceptions namespace (U) - move OIDFactory to Odb.Core namespace (U) - move IOdbComparable to Odb.Core namespace