filters bypassed the deprecation warnings for if/unless.
dependency on magic symbols.
On my mac book pro this made them about twice as fast. Before these changes, `time bundle exec cucumber` resulted in: bundle exec cucumber 2644.08s user 214.31s system 225% cpu 21:09.29 total After these changes, `time bundle exec cucumber` resulted in: bundle exec cucumber 732.46s user 115.82s system 136% cpu 10:22.37 total
find it easier to read and it aligns better w/ the other examples in the same file. - #512.