filter out by methods

See #27, release log:

• 123c931 by @yegor256: #27 TkMethods
• 4fd4fa2 by @yegor256: rm .idea
• 756ff3d by @yegor256: Up to 2017, Happy New Year!
• 4965692 by @yegor256: ruby 2.2.2
• 5fc8a6d by @yegor256: rvm list
• c773ae4 by @yegor256: typo
• 11d8359 by @yegor256: typo
• 109b455 by @yegor256: rvm use
• 56c06be by @yegor256: rvm
• 20a6791 by @yegor256: streams
• 1d06f08 by @yegor256: admin email added to .0pdd.yml
• b7b7c75 by @yegor256: 0pdd.yml added
• ef729b9 by @yegor256: pdd config
• 6c5b87c by @yegor256: new rultor coordinates
• 4c1cfdf by @yegor256: pdd badge

Released by Rultor 1.62.2, see build log