Pidgin 2.10.1

* Finch:
- Fix compilation on OpenBSD.
* AIM and ICQ:
- Fix remotely-triggerable crashes by validating strings in a few messages related to buddy list management.
* Bonjour:
- IPv6 fixes
* Gadu-Gadu:
- Fix problems linking against GnuTLS.
* IRC:
- Fix a memory leak when admitting UTF-8 text with a non-UTF-8 primary encoding.
* Jabber:
- Fix crashes and memory leaks when receiving malformed voice and video requests.
* Sametime:
- Separate "username" and "server" when adding new Sametime accounts.
- Fix compilation in Visual C++.
* SILC:
- Fix CVE-2011-3594, by UTF-8 validating incoming messages before passing them to glib or libpurple.
* Yahoo!:
- Fetch buddy icons in some cases where we previously weren't.
* Windows-Specific Changes:
- Fix compilation