run scc_finish client if present (FATE#312012)

- 3.1.51
- don't hide ReleaseNotes button going back fron inst proposal (bnc#867389)
Merge pull request #166 from yast/scc_finish

run scc_finish client if present (FATE#312012)
Merge remote-tracking branch 'upstream/master'

Conflicts:
	package/yast2-installation.changes
Merge pull request #167 from jsrain/master

don't hide ReleaseNotes button going back fron inst proposal (bnc#867389)
download on-line version of release notes (fate#314695)
file header
Updated comment after clarification with mchf
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
comments from review
- set LIBGL_ALWAYS_INDIRECT in ssh mode (bnc #868175)
- enable yast theme in ssh mode
Merge remote-tracking branch 'upstream/master'

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