fixed product regexp to allow pattern based upgrade

from SLES11 (bnc#871174)
Merge pull request #23 from yast/pattern_based_upgrade

fixed product regexp to allow pattern based upgrade
enablee sshd by default on SLES (bnc#865056)
fix closing tag (thanks @msmeissn)
release
Merge pull request #24 from yast/enable_sshd

enablee sshd by default on SLES (bnc#865056)
Updated SLE12 Upgrade behavior
New changes file entry and new version