Rename before_filter to before_action

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/controllers/admin/appearances_controller.rb

 class Admin::AppearancesController < Admin::ApplicationController
-  before_filter :set_appearance, except: :create
+  before_action :set_appearance, except: :create
 
   def show
   end

app/controllers/admin/git_hooks_controller.rb

 class Admin::GitHooksController < Admin::ApplicationController
-  before_filter :git_hook
+  before_action :git_hook
 
   respond_to :html
 

app/controllers/audit_events_controller.rb

 class AuditEventsController < ApplicationController
   # Authorize
-  before_filter :repository, only: :project_log
-  before_filter :authorize_admin_project!, only: :project_log
-  before_filter :group, only: :group_log
-  before_filter :authorize_admin_group!, only: :group_log
+  before_action :repository, only: :project_log
+  before_action :authorize_admin_project!, only: :project_log
+  before_action :group, only: :group_log
+  before_action :authorize_admin_group!, only: :group_log
 
   layout :determine_layout
 

app/controllers/groups/hooks_controller.rb

 class Groups::HooksController < Groups::ApplicationController
   # Authorize
-  before_filter :group
-  before_filter :authorize_admin_group!
+  before_action :group
+  before_action :authorize_admin_group!
 
   respond_to :html
 

app/controllers/groups/ldaps_controller.rb

 class Groups::LdapsController < Groups::ApplicationController
-  before_filter :group
-  before_filter :authorize_admin_group!
+  before_action :group
+  before_action :authorize_admin_group!
 
   def reset_access
     LdapGroupResetService.new.execute(group, current_user)

app/controllers/projects/git_hooks_controller.rb

 class Projects::GitHooksController < Projects::ApplicationController
   # Authorize
-  before_filter :authorize_admin_project!
+  before_action :authorize_admin_project!
 
   respond_to :html
 

app/controllers/projects/group_links_controller.rb

 class Projects::GroupLinksController < Projects::ApplicationController
   layout 'project_settings'
-  before_filter :authorize_admin_project!
+  before_action :authorize_admin_project!
 
   def index
     @group_links = project.project_group_links.all

app/controllers/projects/uploads_controller.rb

@@ -2,7 +2,7 @@ class Projects::UploadsController < Projects::ApplicationController
   layout 'project'
 
   # We want to skip these filters for only the `show` action if `image?` is true,
-  # but `skip_before_filter` doesn't work with both `only` and `if`, so we accomplish the same like this.
+  # but `skip_before_action` doesn't work with both `only` and `if`, so we accomplish the same like this.
   skipped_filters = [:authenticate_user!, :reject_blocked!, :project, :repository]
   skip_before_action  *skipped_filters, only: [:show]
   before_action       *skipped_filters, only: [:show], unless: :image?

app/controllers/projects_controller.rb

 class ProjectsController < ApplicationController
-  prepend_before_filter :render_go_import, only: [:show]
+  prepend_before_action :render_go_import, only: [:show]
   skip_before_action :authenticate_user!, only: [:show]
   before_action :project, except: [:new, :create]
   before_action :repository, except: [:new, :create]

app/controllers/unsubscribes_controller.rb

 class UnsubscribesController < ApplicationController
-  skip_before_filter :authenticate_user!,
+  skip_before_action :authenticate_user!,
                      :reject_blocked, :set_current_user_for_observers,
                      :add_abilities
   layout 'public_users'