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Fix RINEX files that contain micro sec jumps in phase and range observations
  
USAGE:  sh_fixms -site <site> -nav <nav> -apr <apr> -obs <obs>
  
        <sites> list of rinex files to be fixed (eg berk2470.96o)
  
        <nav> root of rinex navigation file name (eg ./tracking/auto)
  
        <apr> globk .apr file containing site coords (eg ../tables/itrf94.apr) [Default use rinex header]
  
        <obs> observables to be fixed: RANGE just fix p-ranges [DEFAULT]
                                       PHASE fix p-ranges and phases 
  
        <delete> do not save the orginal rinex files with names *.orig [DEFAULT is to save originals]
  
EXAMPLE: sh_fixms -site berk2471.96o -nav ./tracking/auto -apr ../tables/sites.apr -obs PHASE
  
OUTPUT: OLD rinex file renamed with ext .orig & FIXED rinex file with original name
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