problem set 5: problem 3 partially done.

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new file:   basicStatMechLecture13.tex
modified:   basicStatMechProblemSet5Problem3.tex
new file:   basicStatMechProblemSet5Problem3Fig1.png
modified:   renumber
modified:   basicStatMechLecture13.tex
Incorporate lecture 13 into collection.

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modified:   ../METADATA
modified:   ../blogit/basicStatMechProblemSet5Problem3.tex
modified:   ../blogit/renumber
renamed:    ../blogit/basicStatMechLecture13.tex -> basicStatMechLecture13.tex
modified:   chapters.tex
new file:   figures/lecture13Fig1.png
new file:   figures/lecture13Fig2.png
new file:   figures/lecture13Fig3.png
new file:   figures/lecture13Fig4.png
new file:   figures/lecture13Fig4a.png
new file:   figures/lecture13Fig5.png
new file:   figures/lecture13Fig6.png
new file:   figures/lecture13Fig7.png
modified:   ../phy456/spin/qmTwoL16TwoSpin.tex
modified:   ../TODO.txt