Log Message:
(1) Bump version to 3.21.60
    Version 3.21.60
      * Maintenance release

    DistCheck cleanup
      * Added uninstall NAVTEX_Stations.csv to src/Makefile.am

    FLTK-1.1.x
    
      * Added code to allow source reversion to use Fltk-1.1.10 lib
      * Needed by users who either cannot or prefer not to update
        their Linux distributions to the current model.
      * The new UTF-8 capability is not available when compiled against
        Fltk-1.1.10

(2) options.mk is newly installed trying to support either with 
    fltk or fltk13.
    (Not fully tested yet).
   
(3) Update TODO, mainly for fltk 1.1 or 1.3 issue.