Update pebbles/cloudera-build to use dell_bios instead of bios.
install-chef-suse: Stop removing redhat_install/ubuntu_install

This is not in the crowbar json template anymore, so no need to make
them empty in crowbar.json.
install-chef-suse: Use network config from /etc/crowbar/network.json

If /etc/crowbar/network.json exists, then we want to use this as the
network configuration (with deep merge).
json-edit: Add ability to remove attributes
json-edit: Spacing fixes
json-edit: Fix setting/removing of some non-existing subattributes

If there's already an attribute like foo.bar set to "test", then it was
failing when trying to do something on the foo.bar.foo attribute.

Now, when setting, we overwrite foo.bar to be a hash, and when removing
we just exit early.
install-chef-suse: Also call bc-network-admin-helper.rb on network.json

When we have network.json in /etc/crowbar, we also need to validate it.
Merge pull request #1875 from vuntz/install-chef-suse-tweak

install-chef-suse: Stop removing redhat_install/ubuntu_install
Merge pull request #1877 from vuntz/json-edit-improvements

Several improvements to json-edit tools (for pebbles, suse-only)
Merge pull request #1876 from vuntz/install-chef-suse-network

install-chef-suse: Use network config from /etc/crowbar/network.json
install-chef-suse: Fix network validation

We shouldn't validate the two json files, just one.
Merge pull request #1880 from vuntz/install-chef-suse-network

install-chef-suse: Fix network validation
Merge pull request #1874 from VictorLowther/pull-req-master-6cb4dbd22f0ee49187dea948d7285834107926ea

Fix up pebbles/cloudera-build to build properly. [2/2]