zold 0.21.0

• backtrace 0.4.0 >= 0.3

• concurrent-ruby 1.1.3 = 1.1.3

• cucumber 3.1.2 = 3.1.2

• diffy 3.2.1 = 3.2.1

• futex 0.8.6 >= 0.8.1

• get_process_mem 0.2.7 ~> 0.2

• json 2.1.0 = 2.1.0

• memory_profiler 0.9.12 = 0.9.12

• mimic 0.4.2 = 0.4.2

• openssl 2.1.2 = 2.1.2

• rainbow 3.0.0 = 3.0.0

• rake 12.3.1 = 12.3.1

• rubocop 0.60.0 = 0.60.0

• rubocop-rspec 1.30.1 = 1.30.1

• semantic 1.6.1 = 1.6.1

• sinatra 2.0.4 = 2.0.4

• slop 4.6.2 = 4.6.2

• sys-proctable 1.2.1 = 1.2.1

• thin 1.7.2 = 1.7.2

• threads 0.4.0 >= 0.3

• typhoeus 1.3.1 = 1.3.1

• usagewatch_ext 0.2.1 = 0.2.1

• xcop 0.7.1 >= 0.6

• zache 0.13.1 >= 0.7.0

• zold-score 0.4.4 = 0.4.4