An update over surface sketching, allowing object level transformations, Undo, and solving some problems like a mesh duplication that was taking place when there were no strokes, and eliminating a remove doubles that was performed in the whole mesh, now limiting it to just the areas where it's needed to merge the new surface.

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little better tooltip for rotobezier keyframing buttons. People seem to think they need to select CVs before inserting keyframes and that isn't really nessesary

Fixes for api changes.
Max value of scroll isn't updated anymore, needs property callbacks to make it work again.

- added next/previous buttons so you can skip demos.

* Moved property definitions to registration function.
* Changed automatic callback adding to manual, the current API doesn't seem to allow this top be automatically yet.

work in progress addon: demo mode, use for easy setup for looping over blend files, rendering, playing, switching screens.

removed warning, api r35853
quick fix for error.
line 519 commented out > # bpy.ops.object.location_apply()

added "warning": "Script returns errors"
api r35853

"warning": "Script returns errors"

Modified the wiki_url link to point to the MH site. To link to external sites may be frowned upon, but I don't want to maintain duplicate copies of the documentation. This is at any rate better than before, when the the link pointed to outdated info.

from perfection cat (sindra1961) 

Matrix().Scale --> Matrix.Scale

eg: XFCE file - /usr/share/xfce4/xkb/flags/tr.svg

Transformation for non-container objects was applied twice when they were USEd.
Get rid of confusing checks for special cases in USE.createGeom and use special
flag (instancing) which tells geometry is it "normal" geometry creation or
geometry creation initiated by USE node (SYMBOL would be handled differently
int this two cases)

Quick tests showed none regressions.

Suppose zero frictional part for case there's space or comma after
dot in float value. Inkscape sometimes uses such weird format.

- transform() only requires a single argument.
- support 'INVALID' as a unit suffix is present in some files created by docbook.