Adding Host Server to instance detail page

The Host Server is potentially available in the instance detail
data. Now displaying that information. This is useful data for
diagnosing issues.

Implements blueprint: instance-details-add-host-server

Change-Id: If397a6ca6f0fdf0edad12e1948ebaf4041e072d1
Standardizing translation of "-"

There are several places where "-" or '-' are not translated strings.
There are others where they are. This should be consistent. I can see
value in being able to translate "-" to another character.

Closes-Bug: #1398892
Change-Id: Icfcd20fb597122d8efa30debf9f6e7273f036419
Merge "Adding Host Server to instance detail page"
Merge "Standardizing translation of "-""