chg: dev: Remove no longer used serialization stuff.
fix: two small issues wrt. <0 file descriptors
fix: yet another fd leak
chg: tempstr() now return an empty string by default
fix: check openssl error codes to avoid segfault

EVP_Cipher() was crashing when the cipher initialization failed
(for instance, when the cipher suite is not supported by openssl).
chg: add a reference from set-proto-enabled doc to proto-stats

For it may not be obvious that the corresponding getter for set-proto-enabled
is actually proto-stats, not an inexistant get-proto-enabled.
chg: dev: Make sure that the socket is closed when the Guile thread terminate.
fix: Don't annoy the user if opnssl does not support IDEA

Since that's expected.
fix: support for https URL scheme selector

http_build_url() & http_build_domain() now can deal with "https://"
URL scheme selector.
chg: normalized URLs should use default port according to URL scheme
chg: dev: Set device id to 255 when iface is collapsed
fix: Add missing include in Makefile.am.
fix: decrypt_master_secret: Ensure session is initialized.
fix: hashlittle is gone for netmatch as well
chg: dev: allow PIPI signatures to use temporary variables
dev: chg: Added dns signature in PIPI Closes #1212
Allow the user to change timestamp format used in logs
Use vector #(1 2 3) instead of symbol 1,2,3 to denote an array of bytes
chg: try all available TLS keys matching an IP before giving up

Since HTTPS servers frequently tricks TLS to use distinct keys for
distinct hostnames.
chg: FTP signature so that it does not conflict with SMTP

While we are at it, add a signature for SMTP.