src: Centralize version number

As of this commit, the library's version number is defined in
src/version.hpp, and is propagated to waf/sphinx/doxygen.

Change-Id: I6513cc5a15f2c2afa7cf33844e85d199630fe559
Fixes: #1464
diff --git a/docs/manpages.rst b/docs/manpages.rst
index af5501d..6907bee 100644
--- a/docs/manpages.rst
+++ b/docs/manpages.rst
@@ -15,6 +15,7 @@
     ndnsec-export       <manpages/ndnsec-export>
     ndnsec-import       <manpages/ndnsec-import>
     ndnsec-unlock-tpm   <manpages/ndnsec-unlock-tpm>
+    ndnsec-set-acl      <manpages/ndnsec-set-acl>
     manpages/tlvdump
     :maxdepth: 1