Blender Git Loki

Any ID Selector Template: ID Type dropdown now shows icon only as originally
intended

Finally, I've figured out a way to get the ID Selector Template to only show the
icon for the type of ID block (i.e. the intended design), instead of icon+text.
This improves the layout a bit, as previously the type selector and ID-block
pointer and label would all be the same sizes (roughly 1/3rd of the overall
width each), which meant that there wasn't much room left to actually see which
datablock had been selected.

Additionally, I've fixed a few more layout types which still didn't correctly
propagate the red-alert flags.