updated todo
fixed bug: soft clip decoration failed to apply the transformation matrix
 simplified UI for \addplot coordinates: now, it expands macros as it goes.
fixed test
Fixed recent changeset
- fixed bug: polar axes and units library resulted in broken bounding box
added test
updated recent fix
updated backw. compatibility layer for external lib
updated test files
updated manual
updatd todo
incorporated PGF bugfix: external lib failed to work with dvips (since PGF 3.0.0 I suppose); now it produces correct bounding boxes
updated docs