Aaaaand Its Gone - Core::Context was removed along with its references

Deleted Core::Context

Removed context attribute from Core::App

Removed all references from Core::Dispatcher and Core::Error.

Final words inpired by Monty Python:

  This Context is no more.
  It has ceased to be.
  It's expired and gone to meet its maker.
  This is a late Context.
  It's a stiff.
  Bereft of life, it rests in peace.
  If you hadn't nailed it to the perch, it would be pushing up the daisies.
  It's rung down the curtain and joined the choir invisible.
  This is an ex-Context.