Adding waf/wscript as a secondary build system

Also, allowing use of system's boost and disabling C++11

Change-Id: Iaf18dea284907d69921d41b1a82a32fb14a9d432
diff --git a/.gitignore b/.gitignore
index 6df1dda..7d98819 100644
--- a/.gitignore
+++ b/.gitignore
@@ -58,3 +58,9 @@
 
 # Mac OSX
 .DS_Store
+
+# waf build system
+.waf*
+.lock*
+build/
+waf-tools/*.pyc