fix: utf8 encode where non-ascii used

This I should remember: if I use öäå in the source code, even as
a constant literal, this one line needs to be added at the beginning.

Signed-off-by: Zeljko <zeljko@zwr.fi>
bump zwr gem

From now on, to update on server, in Refinder folder
do rake zwr:production:update

Signed-off-by: Zeljko <zeljko@zwr.fi>
do not use overtaken response

This is solving the problem when a previously requested
response arrives after the next one has been processed.

Signed-off-by: Zeljko <zeljko@zwr.fi>
bugfix: have spaces around or

Signed-off-by: Zeljko <zeljko@zwr.fi>