Remove db:migrate_plugins task.

Use the equivalent db:migrate:plugins instead that is provided by the
engines plugin directly.

extra/sample_plugin/README

@@ -7,7 +7,7 @@ This is a sample plugin for Redmine
 1. Copy the plugin directory into the vendor/plugins directory
 
 2. Migrate plugin:
-   rake db:migrate_plugins
+   rake db:migrate:plugins
 
 3. Start Redmine
 

extra/sample_plugin/db/migrate/001_create_meetings.rb

@@ -12,7 +12,7 @@
 #++
 
 # Sample plugin migration
-# Use rake db:migrate_plugins to migrate installed plugins
+# Use rake db:migrate:plugins to migrate installed plugins
 class CreateMeetings < ActiveRecord::Migration
   def self.up
     create_table :meetings do |t|

lib/tasks/ci.rake

@@ -29,7 +29,7 @@ namespace :ci do
     Rake::Task["db:drop"].invoke
     Rake::Task["db:create"].invoke
     Rake::Task["db:migrate"].invoke
-    Rake::Task["db:migrate_plugins"].invoke
+    Rake::Task["db:migrate:plugins"].invoke
     Rake::Task["db:schema:dump"].invoke
     Rake::Task["test:scm:update"].invoke
   end

lib/tasks/deprecated.rake

@@ -20,3 +20,4 @@ end
 deprecated_task :load_default_data, "redmine:load_default_data"
 deprecated_task :migrate_from_mantis, "redmine:migrate_from_mantis"
 deprecated_task :migrate_from_trac, "redmine:migrate_from_trac"
+deprecated_task "db:migrate_plugins", "db:migrate:plugins"

lib/tasks/migrate_plugins.rake

@@ -1,28 +0,0 @@
-#-- copyright
-# ChiliProject is a project management system.
-#
-# Copyright (C) 2010-2011 the ChiliProject Team
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# See doc/COPYRIGHT.rdoc for more details.
-#++
-
-namespace :db do
-  desc 'Migrates installed plugins.'
-  task :migrate_plugins => :environment do
-    if Rails.respond_to?('plugins')
-      Rails.plugins.each do |plugin|
-        next unless plugin.respond_to?('migrate')
-        puts "Migrating #{plugin.name}..."
-        plugin.migrate
-      end
-    else
-      puts "Undefined method plugins for Rails!"
-      puts "Make sure engines plugin is installed."
-    end
-  end
-end