Fix barclamp and name methods to work w/ networks

ProposalObject is (ab)used to also write data bags that contain network
information (and not proposals).

Commit 5614efd broke this because the regular expressions were not
matching at all.

This is only really visible when the network barclamp is applied, which
is usually on install.
Merge pull request #1110 from vuntz/unbreak-install

Fix barclamp and name methods to work w/ networks
avoid bash_completion.sh appearing as an area for crowbar CLI

bash_completion.sh should not appear in the following usage:

cloud4-admin:~ # crowbar
Usage: crowbar <area> <subcommand>
  Areas: ceilometer ceph cinder crowbar database deployer dns glance heat ipmi keystone logging machines network neutron nfs_client node_state node_status nova nova_dashboard ntp pacemaker provisioner rabbitmq reset_nodes reset_proposal suse_manager_client swift trove updater watch_status
Merge pull request #1112 from aspiers/crowbar_cli_areas

avoid bash_completion.sh appearing as an area for crowbar CLI
Move crowbar_node_status tool from barclamp-crowbar to barclamp-nagios

This tool is talking to nagios, so should really live with
barclamp-nagios.
Support finding crowbar subcommands when the executable is a symlink

Right now, the crowbar tool only looks for subcommands in the current
directory and in the directory of the executable. We change the latter
to look for subcommand in the directory of the symlink target if the
executable is a symlink.

This allows having a /usr/bin/crowbar symlink pointing to
/opt/dell/bin/crowbar.
Drop gather_cli.sh script

The idea was to allow exporting the cli tools from the rails app, but
this code in the rails app is dead. And the generation of the tarball is
kind of broken anyway (very Ubuntu-specific).

If we want to allow distribution of the cli tools, we should do it
another way (separate git repo, for instance).
Merge pull request #1115 from vuntz/node_status

Move crowbar_node_status tool from barclamp-crowbar to barclamp-nagios
Merge pull request #1116 from vuntz/crowbar-bin-as-symlink

Support finding crowbar subcommands when the executable is a symlink
Read /etc/crowbar.install.key when CROWBAR_KEY env var is not set

There's no reason the tools cannot try to read the file when the
environment variable is not set.
Merge pull request #1114 from vuntz/read-crowbarkey

Read /etc/crowbar.install.key when CROWBAR_KEY env var is not set
Merge pull request #1117 from vuntz/no-get_cli

Drop gather_cli.sh script
Replaced bulk edit keys

I replaced the bulk edit form field keys to get valid html element ids
generated and to simplify the readability of the generated html from
```node.name``` to ```node.handle```.
Bulk edit node alias exchange (bnc#877090)

The ticket https://bugzilla.novell.com/show_bug.cgi?id=877090 explains
that it is not possible to switch the names for two or more nodes on the
bulk edit page, it results in an error where it simply sais failed to
save the nodes.

I have split the ```alias=``` and ```public_name=``` methods into
multiple methods to integrate a force setter method to avoid the
duplication check because we are not doing real bulk editing.

As the duplication check is already included in the controller for bulk
editing we don't need to check that again within the setter.

To show the user a usefull error message i have added one more
translated error message for the public name as well.
Merge pull request #1118 from vuntz/bulk-alias

Bulk edit node alias exchange (bnc#877090)
Fix log messages when waiting to run chef-client

They were saying "next attempt at XXX" where XXX was static because the
string is not generated at every attempt.
Check selected disks for different raid levels

When configuring RAID, multiple disks are needed. Otherwise i.e. the
autoyast.xml template gets wrong values and the installation aborts.
Fix message when saving node with incorrect group
Merge pull request #1119 from toabctl/raid-check

Check that at least 2 disks are selected for raid
Merge pull request #1120 from vuntz/static-sleep-msg

Fix log messages when waiting to run chef-client