title: List to specific dataframe
body: <p>I want to create a dataframe from a list. The list is from a shiny handsontable input</p>
  
  <p>When I call the input I got:</p>
  
  <pre><code>unlist(input$hot$data)
  
                                      texta
  2                                     80%
  3                                    100%
  4                                    100%
  5                                    100%
  6                                   textb
  7                                    100%
  8                                    100%
  9                                    100%
  10                                   100%
  11                                  textc
  12                                    80%
  13                                   100%
  14                                   100%
  15                                   100%
  16                                  textd
  17                                     5%
  18                                    95%
  19                                   100%
  20                                    35%
  </code></pre>
  
  <p>What I am trying to is to get a df like:</p>
  
  <pre><code>col1  col2 col3 col4 col5
  texta 80   100  100  100
  textb 100  100  100  100
  textc 80   100  100  100
  textd 5    95   100  35
  </code></pre>
  
  <h1>data</h1>
  
  <pre><code># output dput(input$hot$data)
  list(list("texta", "80%", "100%", "100%", "100%"), list(
      "textb", "100%", "100%", "100%", "100%"), list(
      "textc", "80%", "100%", "100%", "100%"), list("textd", 
      "5%", "95%", "100%", "35%"))
  </code></pre>