Avoid overwrite value of deprecated name in conf.

See bug/1194064 #2 Mark McLoughlin's comment

Fixes: Bug #1194064

Change-Id: I421d2decfa8829796fe7b6c14f954f3cccc17215
Imported Translations from Transifex

Change-Id: I3ba2e72c5aa066bede69da52c43bfdafab314c07
Imported Translations from Transifex

Change-Id: I0a97e668c78692bc1b6a93ef05c39cc4ba2b5879
Make NEC Plugin ignore duplicated messgae from the agent

Fixes: bug #1208708
Change-Id: I7d2b779fd0a7356c03e5ef911a98c164a53903ce