New strings to localization (#5225)

* error_can_not_delete_custom_field: Unable to delete custom field
* error_unable_to_connect: Unable to connect ({{value}})
* error_can_not_remove_role: This role is in use and can not be deleted.
* error_can_not_delete_tracker: This tracker contains issues and can't be deleted.


git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3627 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/auth_sources_controller.rb

@@ -63,7 +63,7 @@ class AuthSourcesController < ApplicationController
       @auth_method.test_connection
       flash[:notice] = l(:notice_successful_connection)
     rescue => text
-      flash[:error] = "Unable to connect (#{text})"
+      flash[:error] = l(:error_unable_to_connect, text.message)
     end
     redirect_to :action => 'index'
   end

app/controllers/custom_fields_controller.rb

@@ -56,7 +56,7 @@ class CustomFieldsController < ApplicationController
     @custom_field = CustomField.find(params[:id]).destroy
     redirect_to :action => 'index', :tab => @custom_field.class.name
   rescue
-    flash[:error] = "Unable to delete custom field"
+    flash[:error] = l(:error_can_not_delete_custom_field)
     redirect_to :action => 'index'
   end
 end

app/controllers/roles_controller.rb

@@ -57,7 +57,7 @@ class RolesController < ApplicationController
     @role.destroy
     redirect_to :action => 'index'
   rescue
-    flash[:error] = 'This role is in use and can not be deleted.'
+    flash[:error] =  l(:error_can_not_remove_role)
     redirect_to :action => 'index'
   end
   

app/controllers/trackers_controller.rb

@@ -55,7 +55,7 @@ class TrackersController < ApplicationController
   def destroy
     @tracker = Tracker.find(params[:id])
     unless @tracker.issues.empty?
-      flash[:error] = "This tracker contains issues and can\'t be deleted."
+      flash[:error] = l(:error_can_not_delete_tracker)
     else
       @tracker.destroy
     end