Add irs_process_scripts plugin to replace process control scripts used

by live site which were dropped in rails 2.3 core.

vendor/plugins/irs_process_scripts/install.rb

@@ -0,0 +1,9 @@
+# Install hook code here
+unless defined?(RAILS_ROOT)
+  $stderr.puts "$0 must be run from RAILS_ROOT with -rconfig/boot"
+  exit
+end
+
+require 'fileutils'
+FileUtils.rm_rf(RAILS_ROOT + '/script/process') # remove the old stubs first
+FileUtils.cp_r(RAILS_ROOT + '/vendor/plugins/irs_process_scripts/script', RAILS_ROOT + '/script/process')