bug fix around null objects

api design for multi-mapping

--HG--
rename : Properties/AssemblyInfo.cs => Dapper/Properties/AssemblyInfo.cs
rename : SqlMapper.cs => Dapper/SqlMapper.cs
rename : SqlMapper.csproj => Tests/DapperTests.csproj
rename : EntityFramework/Model.Designer.cs => Tests/EntityFramework/Model.Designer.cs
rename : EntityFramework/Model.edmx => Tests/EntityFramework/Model.edmx
rename : License.txt => Tests/License.txt
rename : Linq2Sql/DataClasses.dbml => Tests/Linq2Sql/DataClasses.dbml
rename : Linq2Sql/DataClasses.dbml.layout => Tests/Linq2Sql/DataClasses.dbml.layout
rename : Linq2Sql/DataClasses.designer.cs => Tests/Linq2Sql/DataClasses.designer.cs
rename : Linq2Sql/Post.cs => Tests/Linq2Sql/Post.cs
rename : Massive/Massive.cs => Tests/Massive/Massive.cs
rename : NHibernate/Iesi.Collections.dll => Tests/NHibernate/Iesi.Collections.dll
rename : NHibernate/LinFu.DynamicProxy.dll => Tests/NHibernate/LinFu.DynamicProxy.dll
rename : NHibernate/NHibernate.ByteCode.LinFu.dll => Tests/NHibernate/NHibernate.ByteCode.LinFu.dll
rename : NHibernate/NHibernate.dll => Tests/NHibernate/NHibernate.dll
rename : NHibernate/NHibernateHelper.cs => Tests/NHibernate/NHibernateHelper.cs
rename : NHibernate/Post.hbm.xml => Tests/NHibernate/Post.hbm.xml
rename : NHibernate/hibernate.cfg.xml => Tests/NHibernate/hibernate.cfg.xml
rename : OrmLite/ServiceStack.Common.dll => Tests/OrmLite/ServiceStack.Common.dll
rename : OrmLite/ServiceStack.Interfaces.dll => Tests/OrmLite/ServiceStack.Interfaces.dll
rename : OrmLite/ServiceStack.OrmLite.SqlServer.dll => Tests/OrmLite/ServiceStack.OrmLite.SqlServer.dll
rename : OrmLite/ServiceStack.OrmLite.dll => Tests/OrmLite/ServiceStack.OrmLite.dll
rename : OrmLite/ServiceStack.Text.dll => Tests/OrmLite/ServiceStack.Text.dll
rename : PerformanceTests.cs => Tests/PerformanceTests.cs
rename : PetaPoco/PetaPoco.cs => Tests/PetaPoco/PetaPoco.cs
rename : Program.cs => Tests/Program.cs
rename : Properties/AssemblyInfo.cs => Tests/Properties/AssemblyInfo.cs
rename : Properties/Settings.Designer.cs => Tests/Properties/Settings.Designer.cs
rename : Properties/Settings.settings => Tests/Properties/Settings.settings
rename : SubSonic/ActiveRecord.cs => Tests/SubSonic/ActiveRecord.cs
rename : SubSonic/ActiveRecord.tt => Tests/SubSonic/ActiveRecord.tt
rename : SubSonic/Context.cs => Tests/SubSonic/Context.cs
rename : SubSonic/Context.tt => Tests/SubSonic/Context.tt
rename : SubSonic/SQLServer.ttinclude => Tests/SubSonic/SQLServer.ttinclude
rename : SubSonic/Settings.ttinclude => Tests/SubSonic/Settings.ttinclude
rename : SubSonic/StoredProcedures.cs => Tests/SubSonic/StoredProcedures.cs
rename : SubSonic/StoredProcedures.tt => Tests/SubSonic/StoredProcedures.tt
rename : SubSonic/Structs.cs => Tests/SubSonic/Structs.cs
rename : SubSonic/Structs.tt => Tests/SubSonic/Structs.tt
rename : SubSonic/SubSonic.Core.dll => Tests/SubSonic/SubSonic.Core.dll
rename : Tests.cs => Tests/Tests.cs
rename : app.config => Tests/app.config
rename : bltoolkit/BLToolkit.4.dll => Tests/bltoolkit/BLToolkit.4.dll

add support for multi dbs, keys on connection string