Removing old Tweepy imports from the main script
Issue #1: Factorizing fetching code into an independent fetcher module.
- Added first stage of the fetching process (streaming)
- Updated main script.
More fixes/changes intended for issue #1:
	- Added subprocess wrapper (signal control for subprocess)
	- Added subprocess interfaces (subclassing for real subprocess code)
	- Changed the main paradigm of the fetcher class (relying in subprocessing for background tasks)
	- Updated main script
Minor refactoring: Moved follow_ids request responsability to the StreamSubprocess (the right place)
Added a queue pusher listener implementation
Changes related to Issue #1:
- Added signaling ignoring for SIGINT signal on subprocess children
- Added semantics for data queues between subprocesses
- Added a temporary forced queue flushing
Refactored subprocessing wrapper to a different module for sake's clarity
Changes related with Issue #3: Minor changes related with python3 and added a dummy dumper for testing purposes
Added a new Pull-based buffered status writer directly compatible with ISubProcess. Minor name interface parameter name changes.
More minor modifications:
- Added some formatting to the dummy dumper.
- Removed more old cruft from the main script
- Added a new method to the ISubProcess interface for sub-task naming
Raised the wait time to 2.5 seconds. Minor compliance changes and formatting issues.
Fixing Issue #3 with a draft implementation of the fetching process
 - Fixed a bug related with teh subprocess wrapper (it didin't wait for subtask to finish)
 - Basic plumbing between producer (stream) and consumer (writer)
 - Writing process currently uses a dummy dumper. Only prints on screen.
Refactoring the subprocess creation code into internal methods with common parts. More readibility is better :)
Solved some issues with subprocess wrapper names. Minor comments and more cruft removed
Added the methods for creating output directories with some subidirs. Needed for future capabilities
Finishing Issue #1. Added final plumbing regarding to target subdirectories.
Merge pull request #7 from jmcotelo/M1

M1 - Closing Issue #1