Project created for episode 4 (GPars).
ForkJoin examples added.
Actors and ForkJoin subjects covered for GPars presentation.
MapReduce example added.
Actors scripts ordered.
Agents example added.
_1_GuessANumber.groovy script simplified.
ForkJoin scripts reordered.
_0_RandomNumbers.groovy script simplified.
Time.groovy script simplified.
Time.groovy script simplified.
Dataflows examples added.