commit before rebasing
user who messaged within 5 minutes is shown online
deleted extra lines and files from the last branch
unindented line 17 int show.html for dashboard
indentation fixed for line 17 in show.html for dashboard
users who signed in wihtout sending any messages are marked as online for 5 minutes
indentation for line 17 in show.html.erb for dashboard fixed
line 19 in dashboard/show.html.erb,  end own line
defined methods in user.rb instead writing methods in controllers
added self for recently_online