Import simpleapp , and a de-mystified makefile

Import the CEF example simpleapp binary directly from the binary
release.

Created a makefile which de-mystifies the magic required to compile and
link a CEF application.
Merge branch 'master' of github.com:Grauniad/CEF-Hello-World
Remove Multiple Inheritance

The Multiple-inheritance model used by the example app has been
replaced by a simple flat model which attempt to implement the single
responsibility principle.(*)

Other minor changes:
  o Added a copy of the CEF license, as required
  o Fixed some broken includes
  o Added an assert to the handler singleton's Instance() method

(*) Previously one "dragon" class was responsible for (amongst
other things) foratting up HTML error pages, changing GTK window
properties and tracking / interacting with all active browser sessions.
Remove Binary
Ignore the testApp binary