ll array of time arrays, splits T
    into additional cells wherever gaps of longer than duration TOL occur.
    Thus TO contains no gaps of longer than duration TOL. 
 
    TOL may either be a scalar or an array of length T.
 
    As an example, if T is a length two cell array 
    
        T{1}=[1 2 3 8 9 12 17]';  T{2} =[1 6 7]'; 
 
    then TO=<a href="cellsplit.html">CELLSPLIT</a>(TI,3) leads to 
 
        TO{1}=[1 2 3]'; TO{2}=[8 9 12]'; TO{3}=17; TO{4}=1; TO{5}=[6 7]'; 
  
    such that there are no 