code: public static boolean consistentAccessions(List<Location> subLocations) {
  		Set<AccessionID> set = new HashSet<AccessionID>();
  		for(Location sub: subLocations) {
  			set.add(sub.getAccession());
  		}
  		return set.size() == 1;
  	}
docs: Scans a list of locations and returns true if all the given locations
  are linked to the same sequence. A list of null accessioned locations
  is the same as a list where the accession is the same
  
  @param subLocations The locations to scan
  @return Returns a boolean indicating if this is consistently accessioned