[Soc-2016-dev] Weekly Report #07, Layer Manager

[Julian Eisel]

Hi all,

Here's my report for week #6, you can also find it on my wiki page:
https://goo.gl/o0pUuY

What I did this week:
* Dropped support for objects on multiple layers for now. I can bring
it back if we decide to keep it, it'd simply take some effort to keep
it working which would be wasted if we end up dropping it.
* Added layer information to bases (to find the layer of an object
without iterative lookups). Could later also work with support for
objects on multiple layers.
* Introduced concept of an active layer.
* Add new, linked or appended objects to the active layer.
* Replaced most Scene.base iterations with a new layer based iterator.
* Had some fun at the German BlenderDay :)

Next Week:
* Get undo and file read/write to work (grr... I keep postponing this)
* Add visibility and selectability toggles.
* Continue updating data usage of old layer system to fit new system.
* Try to get local view separated from layer visibility bits.

Cheers,
- Julian -