#11 don't want to put that in for this version yet
#9 support for quota imposed by the storage provider
#8 conditional first PUTs
#7 update month header
#2 remove all references to 1970
refer to webfinger -13 spec
#5 removed it from the example
paging and thank @steventebrinke in acknowledgements section
from https://tools.ietf.org/tools/idnits/idnits.pyht
from https://tools.ietf.org/tools/idnits/idnits.pyht
ETags should be strings