Wireshark: Update dependencies

Recommend c-ares. Otherwise name resolution is done synchronously, which is excruciatingly slow when your capture file contains a sufficient number of unique addresses.

Remove the PCRE dependency. We switched GRegex (glib's PCRE wrapper) a while back.
Fixup whitespace
Wireshark: remove --with-ssl

I'm pretty sure --with-ssl (which triggers linking against libcrypto) can be removed. As I recall it's a leftover from the days when we used Net-SNMP. Most of our decryption support is handled by gcrypt and GNUTLS.
wireshark: update 1.12.1 bottle.