Blender Git Loki

* Fix uninitialized variable in previous commit, made blur image float
on the canvas.

Hook custom blur radius and type into 2d painting. Really nice result :)

* UI options for configurable blur kernel: size, type (box, gaussian)
* added a function that calculates the blur kernel.

Still not hooked to the paint systems.

Failed attempt at refreshing popup blocks in commented code.

merge trunk -r 60160

Merged revision(s) 60078-60148 from trunk/blender into soc-2013-dingto.

blend mode menu not available after changing to erase and add alpha mode, reported by LightBWK, thanks

Merging from trunk r60137 into soc-2013-motion_track

Fix crash with fetching all reconstructed views

Scale all camera reconstructions to unity

Multicamera-ify reconstruction initialization

Initialization can now reconstruct from two images regardless of the source camera.

Moving some code out of rna_object.c to object.c for updating the level of detail distance.

Using NC_OBJECT|ND_LOD for notifications instead of NC_LOD.

Simplifying the usage of BKE_object_lod_meshob_get and BKE_object_lod_matob_get, and cleaning up the code lod code in object.c.

The level of detail data now uses a bitfield for flags such as use_mesh and use_mat. The few files out there currently using levels of detail will need to renable those options.

Expanding abbreviations used in some level of detail operator names.

Removing the need to have a LodLevel for every object by adding a few checks for special cases.

Changing the label for "Setup Level of Details By Name" to "Setup Levels of Detail By Name"

Rewriting copy_object_lod to use BLI_duplicatelist.

Renaming BKE_object_lod_check to BKE_object_lod_is_usable to make what is being checked more clear.

Merging r60069 through r60105 from trunk into soc-2013-depsgraph_mt