Blender Git Loki

Object selection from tuhopuu2:
Select All by Type / Select All by Layer

User info:
Found in (object mode) 3D View header menu > Select >
Select All by Type selects all objects on visible layers of a certain type
Select All by Layer selects all objects on a certain layer (visible / invisible)

These used together are useful for managing a complex scene, for example
quickly selecting all the lamps and moving them to a separate layer, or
selecting the contents of a layer without having to disrupt the view
configuration of visible/invisible layers.

Coder Info:
Added two functions in editview.c
void selectall_type(short obtype);
void selectall_layer(int layernum);

I committed both of these together since the code/changes are both
very similar.