title: populate UITableView form array recived from JSON with sections
body: <p>I have an array that receive it in a JSON query, sort the array need a table of sections in alphabetical order .</p>
  
  <p>I managed to sort the array alphabetically but I can not split this array into sections.</p>
  
  <p>I found an example with NSDicctionary but i don`t know how to fill it . Thanks in advance!</p>
  
  <pre><code>   animals = @{@"B" : @[@"Bear", @"Black Swan", @"Buffalo"],
              @"C" : @[@"Camel", @"Cockatoo"],
              @"D" : @[@"Dog", @"Donkey"],
              @"E" : @[@"Emu"],
              @"G" : @[@"Giraffe", @"Greater Rhea"],
              @"H" : @[@"Hippopotamus", @"Horse"],
              @"K" : @[@"Koala"],
              @"L" : @[@"Lion", @"Llama"],
              @"M" : @[@"Manatus", @"Meerkat"],
              @"P" : @[@"Panda", @"Peacock", @"Pig", @"Platypus", @"Polar Bear"],
              @"R" : @[@"Rhinoceros"],
              @"S" : @[@"Seagull"],
              @"T" : @[@"Tasmania Devil"],
              @"W" : @[@"Whale", @"Whale Shark", @"Wombat"]};
  </code></pre>