build: various updates

 * Upgrade waf to 2.0.14
 * Sync default compiler flags with ndn-cxx
 * Remove unused pch waf tool
 * Simplify compilation of unit-tests

Change-Id: I2aa21454dd5d691ad2093923582443e5f8329ba7
diff --git a/AUTHORS.md b/AUTHORS.md
index 5800355..c143365 100644
--- a/AUTHORS.md
+++ b/AUTHORS.md
@@ -1,5 +1,4 @@
-PSync authors
-=============
+# PSync authors
 
 ## Main Project Author(s):
 
@@ -12,11 +11,8 @@
 ## Contributer(s):
 
 * Junxiao Shi <https://www.linkedin.com/in/shijunxiao>
+* Davide Pesavento <https://www.linkedin.com/in/davidepesavento>
 
 ## Technical advisor(s):
 
 * Lan Wang <http://www.cs.memphis.edu/~lanwang/>
-
-## Special thanks to:
-
-* Davide Pesavento <https://www.linkedin.com/in/davidepesavento>
\ No newline at end of file