Some changes to various plots for soft spheres.
Tested on knightley. Took 0:45.54.
edits based on referee
Tested on bennet. Took 0:43.15.
Changed the end of section IV in pair paper.
Tested on knightley. Took 1:24.97.
polish off end of Section IV
Tested on bennet. Took 0:19.21.
finish another response to referee
Tested on bennet. Took 0:19.68.
edit conclusion paragraph
Tested on bennet. Took 0:19.61.
Added code for Weeks-Chandler-Anderson (WCA) potential in soft spheres.
Tested on knightley. Took 0:22.88.
Fixed bug in soft spheres WCA DFT calculation for radial distribution.
Tested on knightley. Took 0:22.78.
Added some derivations to soft spheres paper.
Tested on knightley. Took 0:22.14.
Added rest of the derivation for the WCA soft-spheres parameters.
Tested on knightley. Took 0:27.78.
Changed variable names to match those in the soft spheres paper.
Tested on knightley. Took 0:22.01.
fix typo in soft sphere paper
Tested on bennet. Took 0:39.82.
try plotting fprime with WCA comparison
Tested on bennet. Took 0:19.72.
beautify fprime plot
Tested on bennet. Took 0:19.89.
remove unused plot file
Tested on knightley. Took 1:15.10.
Used reduced density and added remark for reduced temperature in argon soft-spheres experiment plots.
Tested on knightley. Took 0:19.39.
Fixed bug that caused a warning on my home computer.  A character array name_suffix was not large enough
Tested on igor-stravinsky. Took 0:47.91.
Added another experimental argon plot to soft spheres paper and clead up data for other argon plots.
Tested on knightley. Took 0:24.09.
Updated SFMT.h and SoftFluid functional to reflect the WCA method.  Had to disable sfmt test and modify some other code to compile. This still needs a bit of fixing to complete.
Tested on knightley. Took 5:17.03.
Merge /home/krebse/deft-soft