Merge pull request #18 from aschnell/master

- updated gitignore
adjusted the default filter for channels (bnc#874904)
Merge pull request #19 from jsrain/master

adjusted the default filter for channels (bnc#874904)
adapt to new bootloader api (bnc#869608)
release
proper dependency
follow conventions
Merge pull request #20 from yast/new_bl_api

New bl api
corrected channel filter validation (bnc#874904)
Merge remote-tracking branch 'upstream/master'

Conflicts:
	package/yast2-s390.changes
Merge pull request #21 from jsrain/master

corrected channel filter validation (bnc#874904)