Small changes to pulsar plots suggested by Lars

img/fhist-J0418+6635.png

img/fhist-J0744-2525.png

img/fhist-J0802-5613.png

img/fhist-J1139-6247.png

img/fhist-J1203-6242.png

img/fhist-J1231-5113.png

img/fhist-J1231-6511.png

img/fhist-J1335-5656.png

img/fhist-J1358-6025.png

img/fhist-J1649-3012.png

img/fhist-J1736-3422.png

img/fhist-J1742-3321.png

img/fhist-J2034+3632.png

img/tvsph-J0418+6635.png

img/tvsph-J0744-2525.png

img/tvsph-J0802-5613.png

img/tvsph-J1139-6247.png

img/tvsph-J1203-6242.png

img/tvsph-J1231-5113.png

img/tvsph-J1231-6511.png