Fix typo in the class name #32
Added TraitIntroductionInfo advice #32
Initial support for Introduction advice #32
Update demo to show DeclareParents in action #32
Merge branch 'introduction'

* introduction:
  Update demo to show DeclareParents in action #32
  Initial support for Introduction advice #32
  Added TraitIntroductionInfo advice #32
  Fix typo in the class name #32