Added model binding overloads that do not require a blacklist.

Added overloads so that one can write 'this.BindTo(myModel)' instead of
'this.BindTo(myModel, new string[0])'
Added one more model binding overload.

Added model binding overload:
public static TModel BindTo<TModel>(this INancyModule module, TModel
instance, BindingConfig configuration)
Merge pull request #1238 from mattilaj/model-binding-overloads

Added model binding overloads that do not require a property blacklist.