Upgrade capybara and selenium-webdriver (#706)

* Upgrade capybara and selenium-webdriver

Also, suppress deprecation warnings from selenium that we can't do
anything about.

* Do not pin capybara; let's stay current

Gemfile

@@ -71,7 +71,7 @@ end
 
 group :test do
   gem 'axe-core-rspec'
-  gem 'capybara', '>= 3.26'
+  gem 'capybara'
   gem 'selenium-webdriver'
   gem 'webmock'
 end

Gemfile.lock

@@ -426,7 +426,7 @@ GEM
     responders (3.1.1)
       actionpack (>= 5.2)
       railties (>= 5.2)
-    rexml (3.3.7)
+    rexml (3.3.8)
     rinku (2.0.6)
     rsolr (2.6.0)
       builder (>= 2.1.2)
@@ -629,7 +629,7 @@ DEPENDENCIES
   capistrano (= 3.16, < 3.17)
   capistrano-passenger
   capistrano-rails (~> 1.4)
-  capybara (>= 3.26)
+  capybara
   coveralls_reborn (~> 0.28)
   devise
   devise-guests (~> 0.6)

config/environments/test.rb

@@ -10,6 +10,11 @@
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 
+  # Suppress selenium deprecation messages, since we can't do anything about them.
+  # We depend on selenium-webdriver to do that for us.
+  selenium_logger = Selenium::WebDriver.logger
+  selenium_logger.level = :error
+
   config.cache_classes = false
   config.action_view.cache_template_loading = true