Rename subprojects
Save both experiment and ancestry to one zipped file.
Fix bug that caused non-deterministic experiments over the long run

A narjillo had a chance to consume food before another narjillo had a
chance to target it. This caused a very small and very rare error - but
it did happen over tens of thousands of ticks, and it could have a
butterfly effect on evolution. The standard DeterministicExperimentTest
didn't catch this, because it didn't tick for quite long enough for it
to happen reliably.
Move development scripts to Gradle
Symlink LICENSE and README.md from distribution to project root
Remove Gradle wrapper

Not needed by users now that there is a packaged distribution
Fix bug with truncated JAR names in distribution