userportal, webadmin: change available locales

available locales in the GUI applications are updated to be more
specific ones, so that in the future it will be simpler to deal with
adding different falvours of certain languages if necessary.

non-English .properties files will be updated in the next patch in the
series.

Change-Id: Id6055b45e89bb4e54b399cf5be6db37d22662b53
Bug-Url: https://bugzilla.redhat.com/957551
Signed-off-by: Einav Cohen <ecohen@redhat.com>
userportal, webadmin: change available locales - part 2

renamed the non-English .properties files to match the locales that the
GUI is compiled with (these locales were changed in part 1).

Change-Id: I2eb1146d278fc0cb830049d9e5190a9b179ce0e3
Bug-Url: https://bugzilla.redhat.com/957551
Signed-off-by: Einav Cohen <ecohen@redhat.com>