docs: Replaced licence (now the code is GPL 3.0), author list, and updated installation instructions

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+NFD Authors
+===========
+
+NFD is an open source project started in late 2013, includes contributions
+from many people around the world, and open for new contributions from new
+volunteers.
+
+
+## Project technical leads:
+
+* Alexander Afanasyev <http://lasr.cs.ucla.edu/afanasyev/index.html>
+* Junxiao Shi         <http://www.cs.arizona.edu/people/shijunxiao/>
+
+
+## Technical advisors:
+
+* Beichuan Zhang      <http://www.cs.arizona.edu/~bzhang/>
+* Lixia Zhang         <http://www.cs.ucla.edu/~lixia/>
+
+
+## All project authors and contributors and their affiliations:
+
+* University of California, Los Angeles
+
+    * Alexander Afanasyev <http://lasr.cs.ucla.edu/afanasyev/index.html>
+    * Ilya Moiseenko      <http://ilyamoiseenko.com/>
+    * Yingdi Yu           <http://irl.cs.ucla.edu/~yingdi/web/index.html>
+    * Wentao Shang        <http://irl.cs.ucla.edu/~wentao/>
+    * Lixia Zhang         <http://www.cs.ucla.edu/~lixia/>
+
+* The University of Arizona
+
+    * Junxiao Shi         <http://www.cs.arizona.edu/people/shijunxiao/>
+    * Yi Huang            <ethanhuang1991@gmail.com>
+    * Jerald Paul Abraham <http://www.cs.arizona.edu/people/jeraldabraham/>
+    * Beichuan Zhang      <http://www.cs.arizona.edu/~bzhang/>
+
+* Colorado State University
+
+    * Steve DiBenedetto     <http://www.cs.colostate.edu/~dibenede/>
+    * Christos Papadopoulos <http://www.cs.colostate.edu/~christos/>
+
+* Université Pierre et Marie Curie, Sorbonne Universities
+
+    * Davide Pesavento    <http://www.lip6.fr/actualite/personnes-fiche.php?ident=D1469>
+    * Giulio Grassi       <http://www.lip6.fr/actualite/personnes-fiche.php?ident=D1461>
+    * Giovanni Pau        <http://www.cs.ucla.edu/~gpau/Giovanni_Paus_Home_Page/Home.html>
+
+* Beijing Institute of Technology
+
+    * Hang Zhang          <http://netlab.bit.edu.cn/z_hang>
+    * Tian Song           <http://cs.bit.edu.cn/songtian>
+
+* Washington University in St. Louis
+
+    * Haowei Yuan         <http://www.cse.wustl.edu/~yuanh/>
+    * Hila Ben Abraham    <http://research.engineering.wustl.edu/~abrahamh/>
+    * Patrick Crowley     <http://www.arl.wustl.edu/~pcrowley/>