First release to support .NET 4.0 and NHibernate 4.x

bugfixes

#231, #200 - changing varchar length for CompositeId doesn't work

infrastructure

#253 - move to FakeItEasy from RhinoMocks
#262 - publish .pdb file on NuGet

features

pr265 - sql-insert, sql-update, sql-delete into join
move to .NET 4.0 and NHibernate 4.x