xform preview function sets density to 1.0 regardless of the original density so that the preview renders properly

removed cleanupParser, as it causes segfaults when many threads are calling the flam3 library at once

print out opacity for final xforms now

final xform opacity now controls how frequently the final xform is applied, so we can do blending effects

added auger variation

xform preview didn't like it when an xform with 0 weight was passed in. oops.

fixed removal of flip var

reverted 'flip' variation, didn't work as expected

added flip variation for the potential of special sauce

completed undo of multiple palette entries per line - was ugly

made sure that all indices were non-negative.

empty palette is OK

added function prototype for new palette interp

functionalized palette interpolation

now will linearly interpolate missing <color> entries in RGB space to support sparse palette defintions