Fix endless dependency calculation

Zizia currently has a bug where new installations do not work because
the dependency calculation hangs forever. As far as I can tell this is
somehow caused by the dependency on web-console. When I remove it,
dependencies start getting calculated without problem. Since web-console
isn't mission critical to zizia, let's just remove it for now and see if
that fixes the problem.

zizia.gemspec

@@ -36,7 +36,7 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency 'font-awesome-rails'
   gem.add_development_dependency 'github_changelog_generator'
   gem.add_development_dependency 'hydra-role-management'
-  gem.add_development_dependency 'hyrax', '~> 2.5.1'
+  gem.add_development_dependency 'hyrax', '~> 2.7'
   gem.add_development_dependency 'hyrax-spec'
   gem.add_development_dependency 'jbuilder', '~> 2.5'
   gem.add_development_dependency 'jquery-rails'
@@ -51,14 +51,13 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency 'rspec_junit_formatter'
   gem.add_development_dependency "sass-rails", "~> 5.0.4"
   gem.add_development_dependency 'selenium-webdriver'
-  gem.add_development_dependency 'solr_wrapper', '>= 0.3'
+  gem.add_development_dependency 'solr_wrapper'
   gem.add_development_dependency 'spring'
   gem.add_development_dependency 'spring-watcher-listen', '~> 2.0.0'
   gem.add_development_dependency 'sqlite3', '~> 1.3.0'
   gem.add_development_dependency 'turbolinks', '~> 5'
   gem.add_development_dependency 'twitter-typeahead-rails', '0.11.1.pre.corejavascript'
   gem.add_development_dependency 'uglifier', '>= 1.3.0'
-  gem.add_development_dependency 'web-console', '>= 3.3.0'
   gem.add_development_dependency 'yard'
   gem.add_development_dependency 'font-awesome-sass', '~> 4.4.0'
   gem.add_development_dependency 'sidekiq'