Merge pull request #257 from mchf/s390

Fixes for LLADDR="00:00:00:00:00:00"
adapt Rakefile to submit to correct build service project in maintenance branch SLE-12-GA
Revert "adapt Rakefile to submit to correct build service project in maintenance branch SLE-12-GA"

This reverts commit 0e4e651a926937ba7ed1c0605001b3916c097a9c.
Use control.xml to set DNS.dhcp_hostname (bnc#870896)

In order to completely close the bug, changes in control.xml for both SLED and
SLES are needed.
Changelog and version updates
Merge pull request #259 from ancorgs/default_dhcp_hostname

Use control.xml to set DNS.dhcp_hostname (bnc#870896)
Fixed initialization of LLADDR. HWAddr replaced by OSAHWAddr. bnc#889287

From linuxrc's help: Manual MAC address setting for Layer 2-enabled OSA
devices. Note that this is distinct from HWAddr, which contains the
default MAC address as detected by linuxrc.
Fixed testsuite
Updated changelog