website: try to fix OpenSSL handling
see
find_package (CppCMS)
find_package (Boost 1.45 COMPONENTS system filesystem thread)
find_package (LibJWT)
-find_package (OpenSSL)
+find_package (LibOpenSSL)
if (NOT CPPCMS_FOUND)
remove_tool (${tool} "CppCMS package not found")
