GitLab

* Add code to compute the remote filesize
* Check for wget and curl in the configuration phase

* In decode-properties.py, use subprocess.Popen method instead of
  subprocess.check_output, which is introduced in python 2.7

* Fix a bug in snf-image-helper where decode-properties.py was not
  properly called

* Fix a bug in FixPartitionTable task

All tasks should be bash scripts that source common.sh. We have also
fixed BUG #1577

The img_properties parameter is a json dictionary
(json.dumps format) which contains all the necessary
properties that will be used to customize the new image.

For {ext,ntfs}dump this is always 1.
For diskdump this is an image property

Also remove `-l' option. It's no longer needed.

Prepend a timestamp before every line of output of run-parts hooks,
needed as a quick-n-dirty way to estimate the time taken by each hook to
complete.

Refs #1499

This has an affect on fedora and ubuntu instances, where user password
is not changed. Only the root one.

DeleteSShKeys task used to fail when /etc/ssh/sshd_config was missing.
We decided to relax this constraint and make it create warnings instead.

Fix usage of file as a var name, in personality task,
it's a built-in Python identifier.

The python code did not compile. File object was not created correct.