Move validation-request.hpp to public API.  Moved static verifySha256WithRsaSignature to new Sha256WithRsaHandler::verify.
diff --git a/Makefile.am b/Makefile.am
index f1e5135..4f3bc6c 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -65,6 +65,8 @@
   include/ndn-cpp/security/policy/no-verify-policy-manager.hpp \
   include/ndn-cpp/security/policy/policy-manager.hpp \
   include/ndn-cpp/security/policy/self-verify-policy-manager.hpp \
+  include/ndn-cpp/security/policy/validation-request.hpp \
+  include/ndn-cpp/security/signature/sha256-with-rsa-handler.hpp \
   include/ndn-cpp/transport/tcp-transport.hpp \
   include/ndn-cpp/transport/transport.hpp \
   include/ndn-cpp/transport/udp-transport.hpp \
@@ -145,6 +147,7 @@
   src/security/identity/osx-private-key-storage.cpp \
   src/security/policy/no-verify-policy-manager.cpp \
   src/security/policy/self-verify-policy-manager.cpp \
+  src/security/signature/sha256-with-rsa-handler.cpp \
   src/transport/tcp-transport.cpp \
   src/transport/transport.cpp \
   src/transport/udp-transport.cpp \