title: slidify package not available in R 3.1.2?
body: <p>I was trying to install Slidify package using R version 3.1.2 in Window OS.</p>
  
  <p>using the command-
  install.packages("slidify")</p>
  
  <p>it returns an error saying 'slidify' is unavailable for version 3.1.2.</p>
  
  <p>Is this really not available for version 3.1.2?</p>
  
  <p>If so what is the alternate package that i can use instead of 'Slidify'?</p>