title: merge multiple TRUE/FALSE columns into one
body: <p>I want to find a way to coerce all the logical columns into a single column with the column titles as factors. </p>
  
  <p>Here is an example: </p>
  
  <pre><code>  Eviction.ID  Non.Payment Breach Nuisance Illegal.Use
  1     M162268        TRUE  FALSE    FALSE       FALSE
  2     M161957       FALSE  FALSE     TRUE       FALSE
  3     M162256        TRUE  FALSE    FALSE       FALSE
  4     M162135       FALSE   TRUE    FALSE       FALSE
  5     M161901       FALSE  FALSE     TRUE       FALSE
  6     M162428       FALSE  FALSE    FALSE        TRUE
  </code></pre>
  
  <p>Desired Output:</p>
  
  <pre><code>Eviction.ID             Reason 
  1     M162268       Non.Payment 
  2     M161957          Nuisance 
  3     M162256       Non.Payment 
  4     M162135            Breach 
  5     M161901          Nuisance 
  6     M162428       Illegal.Use
  </code></pre>
  
  <p>Any help would be greatly appreciated!</p>