Refs #100576, 100600 Merge remote-tracking branch 'origin/topic-csrc-0.5.1'

* origin/topic-csrc-0.5.1:
  Refs #100576, 100651, 100655, 100666, 100668, 100670.  Bump CCN_API_VERSION to 5001.

Author: Michael Plass

csrc/include/ccn/ccn.h

@@ -37,7 +37,7 @@
  * Thus CCN_API_VERSION=1000 would have corresponded to the first public
  * release (0.1.0), but that version did not have this macro defined.
  */
-#define CCN_API_VERSION 5000
+#define CCN_API_VERSION 5001
 
 /**
  * Interest lifetime default.