Releasing Pidgin 2.10.11 Soon

[Mark Doliner]

Tagged and tarballs uploaded! Remaining steps:
- Windows build (Daniel, will you be able to do this within the next few days?)
- 'hg pull' the website on rock. I like to try to wait until after we
have Windows builds, so everyone gets it at the same time.
- Send announcement email to announce and packagers.

https://sourceforge.net/projects/pidgin/files/Pidgin/2.10.11/