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

Fix more build problems

Change AllJoynHelper to use a vector<uint8_t> instead of vector<bool> when setting ajn::MsgArg, since vector<bool> is a specialization that doesn't allow us to access the underlying array.

Fix unused parameter and variable warnings, plus no return value in void function warnings (due to DSB_ASSERT() only working on Apple platforms).

ConfigManager, Bridge, and Makefile improvements

Warning fixes

The loop was:

~DeviceSystemBridge()
Shutdown()
ShutdownInternal()
RegisterAdapterSignalHandlers()
~DeviceSystemBridge()

g_Instance seemed to be used to prevent the DeviceSystemBridge from going out of scope while the adapter listener was still alive. I handled this by notifying the listener in the bridge's destructor.

When make clean is run, remove the built program, top-level *.o files, and ignore the built program in git.

Fix warnings by removing or using unused variables, initializing a variable, and turning off unfixable warnings.