v0.5.0

GGally 0.5.0
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GGPAIRS

* restructured print method to align properly
* prints only panels, not panels and axis labels in the same plotting area
* prints axis labels in separate plotting area
* may control the spacing between plots in print method
* may control the spacing for the left and bottom axis labels in print method.  This is not perfect behavior, but this small loss is worth the major gain of alignment
* may provide custom labels to plot matrix.  'illegal' variable names are now NOT allowed as custom labels may be provided.
* may add a theme to be applied to all subplots

GGSCATMAT

* new function!
* this function makes a scatterplot matrix for quantitative variables with density plots on the diagonal and correlation printed in the upper triangle.
* produces a legend when a color column is provided
* produces a ggplot2 object


GGPARCOORD - splineFactor

* added new splineFactor argument to fit a spline of the points
* may take on TRUE, which defaults to 3 interpolated points
* may take on integer, which interpolates n * length points
* may take an AsIs integer, which interpolates n points