  root2    - root directory of tree2
  showOnly - [1] show but do NOT perform actions
  flag     - [0] 0: synchronize; 1: set root2=root1; 2: set root1==root2
  ignDate  - [0] if true considers two files same even if have diff dates

 OUTPUTS
  dirSynch( 'c:\toolbox', 'c:\toolbox-old', 1 )

 EXAMPLE

 See also

 Piotr's Image&amp;Video Toolbox      Version 2.10
 Copyright 2012 Piotr Dollar.  [pdollar-at-caltech.edu]
 Please email me if you find bugs, or have suggestions or questions!
 License