Reworking links for speed, structure, and proper ordering
Testing Virus on a Network
Sanitizing single quotes in single-quoted JS strings
Correctly computing link equality with `nobody`
Updating infrastructure in wake of previous commit

  * Updating Headless artifact to include a language test that would have caught this bug
  * Adding "PageRank" model to set of model tests, since it caught the bug and now runs correctly
  * Adding model dump for "PageRank"
Updating NetLogo-Headless
remove unused dependency
Merge pull request #121 from NetLogo/scalacheck-unused

remove unused dependency
Bumping version of Publish-Versioned plugin
Tortoise graffle
improved graffle
improved graffle
Links now have reasonable performance, so remove freebie
Running optimistic freebies so we know when they start to pass
Documenting a bit about the optimizer
Fixing bug in agents dying while their agentset is being processed

This addresses a case where some agent, A, would ask some agent, B, to
die while iterating over an agentset that contains both A and B.
Previously, B would still run the command block, even while dead.  Now,
when a shufflerator detects an item that does not meet its criteria for
validity, that item is ignored.  This behavior is compliant with JVM
NetLogo's behavior.
Fixing bug in which turtle shape gets used

  * Bumps to newer version of Headless with simple test for bugged scenario
  * Adds testing for the Wolf Benchmark model, which helped to catch the bug
  * Adds dump for Wolf Benchmark
  * Includes whining comment from yours truly!
WIP: Trying to use compiler split artifact from Headless