Emit ..ERR__ALL_BROKERS_DOWN error after specific broker error (issue #64)
examples: Use rd_kafka_errno2err() to provide proper errors (issue #65)
Dont propagate ALL_BROKERS_DOWN event if we're terminating (issue #65)
Fix Cygwin compilation, again
Generate linker script to only expose symbols of the public API
Prettify make output somewhat, and run 'check' target after libs
Link tests dynamically
Added symbol test