userportal, webadmin: fixed a bug in non-English docs serving

Non-English docs could not be served because of a path error
(- vs. _ in the locale name). Fixed.

The locale directory names always have a -, whereas the webapp
uses _ when looking for the docs.

Change-Id: Icab12b8db9b1216b4c7d588095af36e0b8a2520a
Signed-off-by: Greg Sheremeta <gshereme@redhat.com>