Make Keystone API's Region available

Just in case. This makes it possible to refer to it
without hardcoding the Region Name.
Simply replaced havana with icehouse
Merge pull request #211 from tboerger/feature/havana-to-icehouse

Simply replaced havana with icehouse
Merge pull request #209 from dirkmueller/release/stoney/master

Make Keystone API's Region available
Renamed i18n file, added quotes and copyright
Merge pull request #217 from tboerger/feature/i18n-rename

Renamed i18n file, added quotes and copyright