Corrections of model parameters

1. Cai et al. (1997) J. Neurophysiol.

The following parameter correction is needed: 

	axon Na,	gNamax = 0.37
			Msh = -2.3 
	axon K, 	Nfac = 0.25 

A complete description of the parameters after correction:

node 0 axon
  leak    2.56826e-09 S -53 mV
  gNa     0.37 S 55 mV, Msh -2.3, Hsh -10.8, Mfac 0.1315, Hfac 0.1315
  gK      0.02 S -80 mV, Nsh 2.65, Nfac 0.25
node 1 soma
  Iinj    1.8 nA, 10-50 ms DC
  leak    3.217e-08 S -70.13 mV
  gNa     0.01 S 55 mV, Msh 1.8, Hsh -10, Mfac 0.1315, Hfac 0.1315
  gK      0.01 S -80 mV, Nsh -1.3, Nfac 0.25
  gKLT    0.01 S -77 mV, Bsf 10, Bfac 0.75, a0, b0, 0.03 0.042, Ka, Kb, 14.5 31.25
  gIH     0.02 S -45 mV, IHsf 0, Ks 5

Besides, "Ohm/cm2" and "Ohm/cm" were incorrectly converted to "Ohm*cm2" and 
"Ohm*cm" during printing.

2. Cai et al. (2000) J. Neurophysiol.

Kb should be 3.7 instead of -3.7 using the formula in the paper.