[json] fix json serialization for recent simplejson implementation, and test encoding of entities
as with earlier simplejson implementation, iterencode internal stuff
is a generated function, we can't anymore rely on the _iterencode
overriding trick, so move on by stoping isinstance(Entity, dict).
This is a much heavier change than expected but it was expected
to be done at some point, so let's go that way.
###############################################################################
#
# Put here information about external resources / styles used by your cube,
# or to overides existing UI properties.
#
# Existing properties are available through the `sheet` dictionary available
# in the global namespace. You also have access to a `data` function which
# will return proper url for resources in the 'data' directory.
#
# /!\ this file should not be imported /!\
###############################################################################
# CSS stylesheets to include in HTML headers
# uncomment the line below to use template specific stylesheet
# STYLESHEETS = sheet['STYLESHEETS'] + [data('cubes.%(cubename)s.css')]