rename spec verbose_logging to enable_logging
No longer need work list
array_with_max_feedback -> array_with_cap

no longer need to log / give feedback
clean up verbose method for logging
remove quotes from book titles
dont show rspec profiling for now
cached_hash/web

- not happy that cli knows outstanding holds urls (others hold strings)
- like spider not using visit
- like spider not dealing with web access
- nail down logging and spider
working through mutants