title: How to create indexpaths for all rows and all sections for uitableview?
body: <p>I have a table with n sections. Each section contains one row. How to create the index path for the table? 
  There is a method that allows to create index path for all visible rows <code>[self.tableView indexPathsForVisibleRows]</code> I need something similar like <code>indexPathsForAllRows</code></p>
  
  <p>I need all this to update only the data in the table, because method <code>[self.tableView reloadData];</code> updates all the table with headers and footers. That's why i have to use <code>reloadRowsAtIndexPaths</code></p>