Dummy implementation for binary compatibility
Now supporting the dummy implementation completely with forced binding
optimization annotation.
Enabling internal calls for multi-instance with @Single-optimized
interfaces.
First @StaticDefinitionBinding and @Single test.
Fixing travis config to integrate single-interface-plugin for the tests
Restored the test c-flags to normal.
Merge pull request #2 from StephaneSeyvoz/dummy-meths

Integrating @Single and @StaticDefinitionBinding dummy-meths implementation.