[Nfd-dev] small change with NFD build

[Alex Afanasyev]

Hi guys,

Just want to let you know that we changed a little bit default build flags (and build flags on jenkins build bots) to produce even more warnings.  In particular, we have enabled -std=c++03 and -pedantic flags which ensures that our code doesn't use any specific GCC extensions (and we have used them a little bit).

In any case.  All future NFD code should be at least based on http://gerrit.named-data.net/#/c/636/.  This commit fixes small issues we had with the code, otherwise jenkins builds will fail.

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Alex