Blender Git Loki

- fix for cmake when there is no version character.
- link to release docs correctly from the splash page.

report missing engines on file load. (request from Martin).

changed image texture filters description from 'Area filter' to
'selected filter'.

add randomize transform & object align back into the menu.

ignore the local blender folder when displaying the copy old settings button.

Fix crash for Intel G45 video cards

This video card need a bit different approach to buffer swapping.
Patch provided by nico_ga from IRC.

Fix #26860: uv snap/weld/stitch did not take live unwrap setting into account.

fix [#26888] 3D viewport shading broken after solidify modifier

fix [#26885] transform option disapears when deselecting loops
deselecting edgeloop & edgering would leave the verts de-selected even if other edges had them selected.

less alarming warnings about the python api not being stable in online docs and remove from interactive console.

revert Joseph Eagar's eltopo commits r36073, 36075 (& some minor edits)
discussed with Janne, Ton, Nathan and we agreed this kind of change at least needs discussion with module owners.

Its also too close to release to be making these kinds of changes.

commands used:

# reverse merge
svn merge -r36073:36072 .
# for some reason this gave a lot of property changes
svn revert `svn st | grep "^ M" | awk '{print $2}'`
# reverse merging didn't work here, removing while dir.
svn rm extern/eltopo/


# manually fixed conflict in
# ./source/blenderplayer/CMakeLists.txt
#
# also manually removed 2 lines from
# ./CMakeLists.txt

Fix #26879: Some sculpt brushes does not work when sculpting corrective shapekeys

It was simply missed crazyspace correction for shape keys when mesh is
deformed by modifiers and current tool is smooth/layer (they need special
approach due to they don't use proxies)

modify the method for calculating ghost alpha.
* ghost frame 1 did nothing (alpha 0.0).
* was subtracting alpha from the existing alpha which could end up with negative alpha.
* with larger frame ranges the frames on each size would get too close to being the same as the active frames alpha, use 66% alpha for all non-active frames as well as time based falloff.

small patch from Dobz to clean up non-functional multiuser code for now, and ensure admin level is requested on starting.

change behavior of restoring old settings
- only attempt to restore old 'user' settings (not local), since bundled blender's always use their own settings.
- only automatically run 'bpy.ops.wm.read_homefile()' after copying files if the user hasnt alreadt started making changes in the blend file.

enable blenderplayer library sorting on windows, (was already enabled for blender), resolves linking issue on windows

FIx crash when opening User Preferences even with NVidia card

This crash was discovered by Dalai and this happened because of
unset current context (as result of call wglMakeCurrent(NULL, NULL)).
In this case glGetString(GL_VENDOR) returns NULL. Rather than add check
for vendor != NULL before string comparison, I've changed a bit logic of
context creation:
- Create context and set it as current
- If it's crappy Intel card -- delete this context and
share the only one context between all Windows
- Otherwise, use initial logic (with sharing lists and so on)

This could also fix crash when opening userprefs from a menu with Intel card.

py api: bpy.data.is_dirty wasn't working like image is dirty, instead is would return if the file was saved or not.
- rename to 'is_saved' (and negated).
- add 'is_dirty' which is true when the files edits are not saved to disk.

operator & splash button to copy over old settings when blender version changes.

api changes needed for for copying old settings to new.
- py: bpy.utils.resource_path('USER', 2, 56)
- C: BLI_get_folder_version(id, major, minor, check);