build: Always build in C++11 mode.

This commit also embeds CI build scripts and includes waf script update

Change-Id: Ib89dd8040b5e438866315425293b02694b8d85fe
Refs: #1930
diff --git a/waf b/waf
index 78a44f3..ef9df38 100755
--- a/waf
+++ b/waf
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