Fix Spinach failures

Signed-off-by: Rémy Coutable <remy@rymai.me>

features/steps/admin/push_rules.rb

@@ -14,7 +14,7 @@ class Spinach::Features::AdminPushRulesSample < Spinach::FeatureSteps
   end
 
   step 'I see my push rule saved' do
-    visit admin_push_rules_path
+    visit admin_push_rule_path
     expect(page).to have_selector("input[value='my_string']")
   end
 end

features/steps/project/wiki.rb

@@ -81,7 +81,7 @@ class Spinach::Features::ProjectWiki < Spinach::FeatureSteps
   end
 
   step 'I click on the "Pages" button' do
-    wiki_menu = find('.content .nav-links')
+    wiki_menu = find('.content-wrapper .nav-links')
     wiki_menu.click_on "Pages"
   end
 

features/steps/shared/paths.rb

@@ -224,7 +224,7 @@ module SharedPaths
   end
 
   step 'I visit push rules page' do
-    visit admin_push_rules_path
+    visit admin_push_rule_path
   end
 
   step 'I visit admin license page' do