Added check for .NET version. Systems running versions prior to 1.1 will get error message.
Added check for .NET version. Systems running versions prior to 1.1 will get error message.


SVN: 488784591515bd4cdaa016be4ec9b172dc4e7caf@636

ManufacturingIntelligence/nhibernate-core,lnu/nhibernate-core,fredericDelaporte/nhibernate-core,fredericDelaporte/nhibernate-core,gliljas/nhibernate-core,nkreipke/nhibernate-core,lnu/nhibernate-core,nkreipke/nhibernate-core,RogerKratz/nhibernate-core,ManufacturingIntelligence/nhibernate-core,hazzik/nhibernate-core,lnu/nhibernate-core,hazzik/nhibernate-core,RogerKratz/nhibernate-core,livioc/nhibernate-core,hazzik/nhibernate-core,alobakov/nhibernate-core,ngbrown/nhibernate-core,alobakov/nhibernate-core,hazzik/nhibernate-core,nhibernate/nhibernate-core,gliljas/nhibernate-core,nhibernate/nhibernate-core,fredericDelaporte/nhibernate-core,gliljas/nhibernate-core,RogerKratz/nhibernate-core,nkreipke/nhibernate-core,livioc/nhibernate-core,ngbrown/nhibernate-core,livioc/nhibernate-core,ManufacturingIntelligence/nhibernate-core,nhibernate/nhibernate-core,RogerKratz/nhibernate-core,alobakov/nhibernate-core,gliljas/nhibernate-core,nhibernate/nhibernate-core,ngbrown/nhibernate-core,fredericDelaporte/nhibernate-core