Adds an option to generate sequential project identifiers.

Disabled by default, it can be enabled on the 'Projects' tab in application settings.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1777 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/projects_controller.rb

@@ -69,6 +69,7 @@ class ProjectsController < ApplicationController
                                   :order => 'name')
     @project = Project.new(params[:project])
     if request.get?
+      @project.identifier = Project.next_identifier if Setting.sequential_project_identifiers?
       @project.trackers = Tracker.all
       @project.is_public = Setting.default_projects_public?
       @project.enabled_module_names = Redmine::AccessControl.available_project_modules