Libmv: Reshuffle CMake and SCons configuration files

The main idea is to share as much code between cases when feature-full built
is done and only logging is needed, so all the defines and include directories
are guaranteed to be the same.

This would hopefully make it so MinGW compilation is all happy about Cycles
logging for both CMake and SCons.
Fix ping-pong actions when using the Action Actuator.
Fix T42829: Cycles crash rendering when file is saved to specific location

The issue was caused by the way how RNA pointer was created for the bMain:
namely Cycles was using RNA_id_pointer_create to create the pointer, which
would then try to refine the poniter based on the ID type.

This is just wrong and worked so far just because of co-incident, with the
file path from the bug report first letters in the ID name happened to be
NT which corresponds to NodeTree, and for sure refining such pointer will
fail.

Simple solution -- use proper way to create RNA pointer for non-ID block.
Cycles: Fix more wrong usages of RNA_id_pointer_create

Title says it all, just be more careful in the future.
Fix crash when changing worlds with world background active.

Freeing the preview will free the original gpu material so NULL that out
on copy.
Fix T42859 smart UV unwrap does not support aspect correction.

Can be considered TODO but it's not bad to support either. Also added
RNA api to get aspect ratio of assigned UV image - returns aspect
corrected image dimensions so needs adjustments for uv editing.
Fix blenderplayer compilation (tm)
cleanup: disallow NULL arg to uvedit_aspect

also some typo's
Merge https://github.com/Evangel63/Human-Body-Simulator