Allow SSh access to discovered nodes.

The provisioner barclamp already allows to specify additional ssh access
keys for the admin node and it makes sense to just reuse those for nodes
that are in discovery state. Helps with debugging and is much easier
than the current solution based on hooks:

  $ cat /updates/discovered-pre/passwd.hook
  PASS="1r21lb1dp1ssw4rd"
  echo -e "$PASS\n$PASS" | passwd

Also, ~/.ssh/authorized_keys mode should be 0644, not 0700.
Merge pull request #137 from saschpe/release/pebbles/master-discovery-ssh

https://github.com/crowbar/barclamp-provisioner/pull/137

Merged by devtool for cloudsleuth
Run crowbar_join.sh from local source in AutoYaST

It seems when the network is flaky autoyast tends to
download an empty file then instead. curl while the
network is still up works more reliable.
Explicitly set normal_attrs, fixes deprecation warning
Merge pull request #140 from dirkmueller/release/pebbles/master

Run crowbar_join.sh from local source in AutoYaST
Merge pull request #142 from saschpe/release/pebbles/master

Explicitly set normal_attrs, fixes deprecation warning
Avoid duplicate test

No need for the if statement, since the test is already done with the
when statement.
Merge pull request #143 from vuntz/minor-cleanup

Avoid duplicate test