config.include/extend no longer respect :type option

[jfirebaugh]

As reported here:

http://groups.google.com/group/rspec/browse_thread/thread/fdeca10a5719f19c

The various types of example groups should automatically have an appropriate :type metadatum applied to them, so that this continues to work.

[dchelimsky]

The :type option is added, but it seems that there is an evaluation order problem - the include/extend hooks are sometimes eval'd before the :type property is set. Looking into why.

[dchelimsky]

Fix is in rspec-core: http://github.com/rspec/rspec-core/commit/91cb8a6f7b54ee8a823192a06c668b03ddf6fdda