some progress in porting for rm2.x

init.rb

@@ -16,8 +16,8 @@ ActionDispatch::Callbacks.to_prepare do
 end
 
 # Hooks
-require 'rate_project_hook'
-require 'rate_memberships_hook'
+require_dependency 'rate_project_hook'
+require_dependency 'rate_memberships_hook'
 
 Redmine::Plugin.register :redmine_rate do
   name 'Rate'
@@ -27,7 +27,7 @@ Redmine::Plugin.register :redmine_rate do
   description "The Rate plugin provides an API that can be used to find the rate for a Member of a Project at a specific date.  It also stores historical rate data so calculations will remain correct in the future."
   version '0.2.1'
 
-  requires_redmine :version_or_higher => '1.0.0'
+  requires_redmine :version_or_higher => '2.0.0'
 
   # These settings are set automatically when caching
   settings(:default => {