When installing omg-aggmgr note the following:

1. In ogs.rb add variable that represents root directory of the application
{{{
DEF_VAR_PATH ="/usr/share/omf-aggmgr-5.2/omf-aggmgr"
}}}
2. In method register in ogs.rb add root path to server content
{{{
#Lets add root path to static server/service content
cfg.merge!('varPath' => "#{DEF_VAR_PATH}")
}}}
3. Add file handler to public_html directory (this is necessary for grid status front-end and for new scheduler developing)
{{{
  path = DEF_VAR_PATH + "/public_html" 
  @@server.mount("/public_html/", HTTPServlet::FileHandler, path) {
    raise HTTPStatus::NotFound, "#{path} not found."
  }
}}}