Set annotation color light until save complete.
Rearrange some stuff.
Add UI code for spanning annotations, not backed by DB yet.
Shift geometry code to a more sensible place in the file.
Spanning annotations in the db.
Delete and fade out for spanning annotations.
Preliminary spanning event creation.
Fixed bug with net queue.

Annotation#delete failed to call next() when no _id.
Don't create spanning annotation until mouse leaves the day box.
height -> min-height for spanning annotations.
white-space: pre-wrap on spanning-annotations.