Removed some dead code from Guid.

* Added IAdapter::GetStatusText
* Removed some warning ignores in Makefiles and now use pragmas.

Add more info about Make options and how to run moc-adapter.

Use gcc-4.8 on CircleCI

Add libuuid to dependencies and give example apt-get command.

CircleCI dependency order

Don't use $(HOME) in CircleCI's environment variable definitions, use GTEST_DIR more consistently, and don't built tests when building AllJoyn.

CircleCI

Add dependencies to the README. Reformat and rearrange for better readability.

Fill in enough of BridgeDevice to expose AllJoyn devices from the adapter over the network.

There seems to be a bug in alljoyn core that prevents us from registering the callback. I
have the callback implemented, but the actual registration is commented out for now until
we resolve.

Without this, libxml errors go to stdout.

Expose AllJoyn devices