just use the socket timeout for the wms timeout, instead of a spawned thread
store timepositions for time-aware wms layers: migrate your db!
pass timepositions to front-end
Merge branch 'lizard5' of github.com:lizardsystem/lizard-wms into lizard5

Conflicts:
	lizard_wms/admin.py
Merge branch 'lizard5' into roland-popup

Conflicts:
	lizard_wms/models.py
Add timeformatting when a layer is timesensitive.