[Ndn-interest] OSX Homebrew formulae

[Felix Rabe]

Hi

Congratulations on the platform release!

I'm working on `brew install`-ability of the NDN Platform 0.3 over at 
https://github.com/felixrabe/homebrew/ (named-data branch).

ndn-cxx 0.2 seems to build fine already (tested on OS X 10.9.4, and so 
far not including any optional dependencies):

     brew install 
https://raw.githubusercontent.com/felixrabe/homebrew/named-data/Library/Formula/ndn-cxx.rb

     # or: cd /usr/local ; git add remote (my repo) ; ... (checkout 
named-data) ; brew install ndn-cxx

This is my first Homebrew formula, so please feel free to send me pull 
requests. My plan is to gather feedback and pull requests from the NDN 
community and cover the whole NDN platform before creating pull 
request(s) to the official https://github.com/Homebrew/homebrew.

Sneak preview: I'm also working on Docker images, and I've already 
succeeded in building ndn-cxx on Ubuntu 14.04 as a Docker image. More on 
that later.

Kind regards
- Felix