Finished multi-way communications.

Fixed some preprocessor macros that got renamed, minor fixes, etc.

Merge branch 'master' of https://github.com/Regal-Internet-Brothers/I…

…OSync.git

Added options for custom configurations.

Merge pull request #1 from Regal-Internet-Brothers/Experimental

Experimental

Added new configuration options for devices.