Added tests for deleting rules that still have jumps to them and fixed the 'too many links' bug in the process
Fixed a bug in the secg rspec matcher where tests passed even if only a subset of the vnics applied was given. You need to pass the exact vnics applied now, as it should be.
Fixed a bug where destroyed vnics weren't removed from a secg's isolation chain. Also wrote an rspec example for that in the process