Checking branch pushing
The MMR is ready for extension. Workers create threads and wait for only those threads to finish by using a joiner thread
MMR is ready for some source implementation and formatting the data
Prepared search action
Put HTTP-API request handlers in a package and added a task dispatcher.
Added deezer as metadata source and removed some hardcoded values
Changed workflow for zmq result sender because it can't be shared by multiple threads
Removed all hardcoded shizzle
MIS: Add 'type' to select function.
MIS: Add Accept and Content-Type headers.
Merge branch 'mmr' into mis