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Signed-off-by: Nikos Skalkotos <skalkoto@grnet.gr>

Signed-off-by: Nikos Skalkotos <skalkoto@grnet.gr>

Conflicts:
	debian/snf-image.postinst

Conflicts:
	version

This can be used to overwrite the default HELPER_URL

Make it reflect the current state

Url must be parsed before checked against LocationURL. This commit
fixes this by parsing the url at the beggining.

s/in/is/

When you run snf-image-create-fixed-helper an archive of the fixed
helper is created under /tmp

Move the old snf-image-update-helper to snf-image-create-fixed-helper
and make the new snf-image-update-helper download a fixed helper image
specified by the HELPER_URL variable.

Signed-off-by: Nikos Skalkotos <skalkoto@grnet.gr>

Add missing snf-image-helper build dependencies

Remove snf-image-update-helper (it does not work in wheezy) and
update the postinstall message to advise the users to download a
fixed snf-image-helper image.

if you miss this, then the --enable-version-consistency-check is not
treated as a ./configure option

Get the debian version from the DEB_DEVFLOW_DEBIAN_VERSION environmental
variable created by devflow

Conflicts:
	snf-image-host/debian/control

Update pithcat to initialize the Pithos ModularBackend differently,
based on the type of the requested image URL. Specifically, in case the
image URL if a 'pithosmap' URL, no access to the database is needed. So
in this case, the backend must be initialized with 'None' database
connection URL.