last version of dockx can't be launched (patch)

[r2rien]

Hi, thanks a lot for dockx, been enjoying since so long !

Since last version, dockx cannot be launched with a particular theme:
...
  File "/usr/lib/pymodules/python2.7/dockbarx/iconfactory.py", line 715, in __command_transp_sat
    new = cairo.ImageSurface(cairo.FORMAT_ARGB32, w, h)
UnboundLocalError: local variable 'w' referenced before assignment

it looks like 'else' clause in __command_transp_sat is triggered by my surely quitely hacky theme, but then it's missing w and h assignments for cairo.ImageSurface

please find a quick patch fixing it for me:
dockx_transp-sat-fix-unref-vars.patch

as also my theme responsible for this:
Air2DBX.tar.gz

[r2rien (r2rien)]

+ my theme responsible of this