title: read.csv() with UTF-8 encoding
body: <p>I am trying to read in data from a csv file and specify the encoding of the characters to be UTF-8. From reading through the ?read.csv() instructions, it seems that fileEncoding set equal to UTF-8 should accomplish this, however, I am not seeing that when checking. Is there a better way to specify the encoding of character strings to be UTF-8 when importing the data? </p>
  
  <p>Sample Data: </p>
  
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  <pre><code>fruit&lt;- read.csv("fruit.csv", header = TRUE, fileEncoding = "UTF-8")
  fruit[] &lt;- lapply(fruit, as.character)
  Encoding(fruit$Fruit)
  </code></pre>
  
  <p>The output is "uknown" but I would expect this to be "UTF-8". What is the best way to ensure all imported characters are UTF-8? Thank you. </p>