NLSR

Currently nlsrc is supposed to listen on localhost and router name prefix (http://redmine.named-data.net/issues/2737) but it only listens for localhost correctly.

It registers the correct router prefix but then sets interest filter for /lsdb (LsdbDatasetInterestHandler) instead of <$RouterName>/lsdb.
(Can be checked by running NLSR with DEBUG log level).

This is happening because LsdbDatasetInterestHandler is initialized in Nlsr constructor where it is passed m_confParam.getRouterPrefix()
before it is built later in Nlsr::initialize m_confParam.buildRouterPrefix().

Hence in the constructor an empty string is passed for router name.