Initial release of binaries from GitHub

Initial release of installation binaries for the extensions/clients, after moving project to GitHub. Old binaries also available at Google Code (until they stop offering access): https://code.google.com/p/autosmsclients/downloads/list.

Also see wiki page for more details regarding installation of some extensions/clients: https://github.com/daluu/autosmsclients/wiki/AutoSMS-clients%2C-installation-and-download