Make labels in Network Topology translatable

Fix the button and object labels in the network topology pop ups to be
translatable and concatenation-free.  Use "None" as the not found value to be
consistent with the network ports detail screen.  This patch excludes
fixing the status values.

Partial-Bug: #1323599
(cherry picked from commit 707f3f3ab754ee583259fd6c0c379503ee51d92c)

add missing semicolon in networktopology

Add in the missing semicolon identified by jshint.

Closes-Bug: #1382825
(cherry picked from commit 863fa952509e24f4544667dd47e3df6b5b42c432)
Change-Id: Ia0c92842703109401d758d5ac3ccefab9ccf6971
Merge "Make labels in Network Topology translatable" into stable/juno