dos2unix performed on cgsymbol_extra.pro

Performed the dos2unix routine on cgsymbol_extra.pro to make it conform with
the remainder of the code base.  The overall result is a wholesale replacement
of the routine, but oh well.

	modified:   utils/cgsymbol_extra.pro
Add dV/dR rotation curve slope option

Add the dV/dR rotation curve parameter from Reid et al. (2014) to the kinematic
distance calculation and configuration files.  For the moment, we are using
dV/dR = 0, which is consistent with the measured -0.2 +- 0.4 km/s/kpc.  Adding
this parameter to the calculation, however, allows for the easy use of a nonzero
value of this parameter with future revisions of this rotation curve.

	modified:   conffiles/galactic_params.conf
	modified:   rot_curve/omni_vphys2vlsr.pro
	modified:   subroutines/omni_read_conffile_galactic.pro
Update the GRS extraction optimization

Based on the "Big Island" bugfix, recompute the optimization for GRS velocity
extraction.  These values have been updated in ancillary.conf.

	modified:   conffiles/ancillary.conf
Correct convention that V_s is in the direction of circular motion

Update kinematic distance routines with the convention that V_s, as specified
in Reid et al. (2014) is in the direction of circular motion.  Therefore, any
obserbved counterrotation would have negative values of V_s.  The code
previously assumed a counterrotation, and hard-wired the negative sign.  With
this update, routines have been aligned with the current convention.

	modified:   rot_curve/kdist.pro
	modified:   rot_curve/kdist_iau.pro
	modified:   rot_curve/omni_vphys2vlsr.pro
Plotting routine update for the paper

Updates to the generic DPDF plotting routine omni_plot_dpdfs.pro aimed at
making a pretty plot for the upcoming paper.  When not used with the /PAPER
option, no changes are evident.

	modified:   subroutines/omni_plot_dpdfs.pro
Update release string to 0.9.6

	modified:   README.md
Merge branch 'master' into release