Blender Git Commits

* Replace some more Blender 2.5x with Blender 2.6x and some code cleanup.

Collada:
* Save "Blender 2.6x" if built without BUILDINFO.

Scons:
* Some code and comment cleanup
* Remove cmake equivalent variable comments
* Remove some non used parameters from config files and btools: WITH_BF_FMOD, BF_VERSION.
* Remove some commented non-used variables

Fix for untested portions in the last commit concerning thickness position options.

New options in the Parameter Editor mode for controling the position of stroke thickness.

The new options enable a better control on the position of stroke thickness with
respect to stroke backbone geometry. Three predefined positions are:
* center: thickness is evenly split to the left and right side of the stroke geometry.
* inside: strokes are drawn within object boundary.
* outside: strokes are drawn outside the object boundary.
Another option called "relative" allows users to specify the relative position by a
number between 0 (inside) and 1 (outside).

The thickness position options are applied only to strokes of the edge types SILHOUETTE
and BORDER, since these are the only edge types defined in terms of object boundary.
Strokes of other edge types are always using the "center" option.

Disabling color channels for float images in clip editor now works fine.

Fixed deadlock on loading file without number group into movie clip editor

Fix for an unnormalized normal vector in ViewEdgeXBuilder::BuildSmoothFEdge().

fix for passing float to RNA_def_property_ui_range() int argument.

Fix for reconstruction menu which still was using set_floor operator instead of set_plane

Fix [#30851] Mesh Editmode: Specials-menu lost "Subdivide smooth"

* Subdivide Smooth was missing in the edit mode specials menu since B-Mesh merge.

fix for vertex slide not taking object transformation into account.

also make the shortcut 'Shift+V'

code cleanup: no functional changes
- memset(..., -1) is used incorrectly even though it worked: MOD_solidify.c - thanks Halley from IRC for noticing this. use fill_vn_i() instead.
- quiet warnings in editmesh_slide.c
- cleanup comments in bmesh and some other minor comment additions.

Added Vertex Slide: Slides a vertex along a selected and connected edge (Shift+Ctrl+V)
-
BMop: "vertslide vert=%e edge=%hfev distance_t=%f"

dont display any file as a preset in the menu (limit to *.py, *.xml)

backup files like .py~ for eg had their own menu entries which got annoying.

added optional filter_ext function callback argument to Menu.path_menu() to avoid displaying invalid types.

Fix for broken face normals in FEdgeSharp and FEdgeSmooth, resulting from
splitting of FEdges at 2D intersections (i.e., at TVertices).

Temporary gzopen fix for for Windows
If we open file for write, we create a new file and close it. Therefore we have existing path for GetShortPathName.

Strangely zlib fails on gzclose if file descriptors are used.

Fix #30798: when linking a datablock, it got simply added to the back of the
list, now the linked datablocks are sorted by name too (but still appear after
the non-linked datablocks).

Cycles: fix nan's generated by glossy BSDF in some cases.

Fix for a crash in the single layer mode with Freestyle enabled.