Update dependencies (Gemnasium auto-update c8a4961de2ccd79da08c1697847e53bf5e5b8277)

Created by: daandavidsz

Update dependencies: simplecov: 0.11.2 => 0.14.1 capybara: 2.12.0 => 2.13.0 database_cleaner: 1.3.0 => 1.5.3 jquery-rails: 4.2.2 => 4.3.1 json: 1.8.6 => 2.0.3 multi_json: 1.11.2 => 1.12.1 webmock: 1.24.2 => 1.24.6 uglifier: 2.7.2 => 3.1.9 yajl-ruby: 1.2.1 => 1.3.0 httparty: 0.13.7 => 0.14.0 mime-types: 2.99.3 => 3.1 tilt: 2.0.5 => 2.0.7 eventmachine: 1.2.1 => 1.2.3 rest-client: 1.8.0 => 2.0.1 pry: 0.10.3 => 0.10.4 vcr: 3.0.1 => 3.0.3 guard-rspec: 4.6.4 => 4.6.5 rb-fsevent: 0.9.7 => 0.9.8 prawn: 2.1.0 => 2.2.2 pdf-reader: 1.4.1 => 2.0.0 awesome_print: 1.6.1 => 1.7.0 rb-inotify: 0.9.7 => 0.9.8 multi_xml: 0.5.5 => 0.6.0 bourbon: 4.2.6 => 4.3.3 domain_name: 0.5.20160310 => 0.5.20170223 ffi: 1.9.10 => 1.9.18 puma: 3.4.0 => 3.8.2 lumberjack: 1.0.10 => 1.0.11 colorize: 0.7.7 => 0.8.1 mimemagic: 0.3.1 => 0.3.2 active_model_serializers: 0.9.3 => 0.9.6 ttfunk: 1.4.0 => 1.5.0 poltergeist: 1.13.0 => 1.14.0 listen: 3.0.6 => 3.1.5 font-awesome-rails: 4.5.0.1 => 4.7.0.1 hashdiff: 0.3.0 => 0.3.2 dotenv: 2.0.0 => 2.2.0 neat: 1.7.3 => 1.7.4 appsignal: 2.1.0 => 2.1.2 http-cookie: 1.0.2 => 1.0.3 byebug: 8.2.2 => 9.0.6 dotenv-rails: 2.0.0 => 2.2.0 active_interaction: 3.4.0 => 3.5.0 rspec-collection_matchers: 1.1.2 => 1.1.3 guard-coffeelint: 0.1.4 => 0.1.5 pdf-core: 0.6.1 => 0.7.0 notiffany: 0.0.8 => 0.1.1