Merge pull request #130 from nurupo/master

Fixed IRC channel for Travis
IRC webchat link now links to irc channel.
Updated INSTALL.md to add dependencies for OSX

Besides libtool one needs automake and autoconf for libsodium to compile successfully. Added links and adapted instructions accordingly.
Merge pull request #136 from thunfischbrot/patch-2

Updated INSTALL.md to add dependencies for OSX
Initial commit for Toxic, a new curses interface for Tox.
Still a work-in-progress.
Merge pull request #142 from plutooo/master

Initial commit for Toxic, a new curses interface for Tox.
Fixed build.
Fixed formatting of some cmake files
Fixed function signature