Changes in version 0.1.3 (2019-07-15)                  

  - 

                        Changes in version 0.1.2                        

  - check the labels of the trees so that the function stop if the trees
    do not have the same leaves labels.

                        Changes in version 0.1.1                        

  - Added Example in mergeTrees description (CRAN submission warning
    otherwise)