Dispatcher.h,hpp        :  a template dispatcher
ActiveObserver.h,hpp    :  a template observer updating at each event
SimpleObserver.h,hpp    :  a template observer updating on demand
IntMultiplier.h,cc      :  an observer multiplying int numbers and
                           checking if they're prime
CheckPrime.h,cc         :  an observer checking if an int number is prime
IntAnalyzer.h,cc        :  an observer printing the results from
                           IntMultiplier
obsCreate.cc            :  a chunk of code creating an IntAnalyzer
observerTest.cc         :  a test program sending 100 int numbers


to compile:
c++ -Wall -o observerTest observerTest.cc \
  IntAnalyzer.cc obsCreate.cc IntMultiplier.cc CheckPrime.cc
