Dropped code which disabled manual network configuration. bnc#858523

The resolution on disabling the manual network configuration is done in
the client (yast2-network/inst_lan.rb) itself. yast2-network currently
implements in automatic net configuration. If automatic configuration
fails then the dialog is shown.
Updated changelog
Merge pull request #169 from mchf/bnc858523-manual-net-config

Enable manual net config
add kernel parameters for s390 when cio_ignore enabled to never blacklist console or ipl devices (fate#315318)
release
fix notes from review
Merge pull request #170 from yast/cio_ignore_condev

Cio ignore condev
fix dependency on yast2-bootloader and testsuite
Merge pull request #171 from yast/cio_ignore_condev

fix dependency on yast2-bootloader and testsuite
Merge remote-tracking branch 'upstream/master'

Conflicts:
	package/yast2-installation.changes
	package/yast2-installation.spec