Refactors all non standard/stable modules to extra package, including database transforms.
removes pycharm autoadded erroneous package root
Project restructuration using http://pound-python.org/ directives, changing version numbering scheme as it will require probably a couple of month (even maybe a couple of couple of months) before were confident enough to publish a 1.0 stable API, seeing that huge libs like sqlalchemy are still pre 1.0 despite their quality ...
attempt to fix version within namespace package
again an attempt to fix this setup.py to be useable in intra namespace requirements specs
Merge remote-tracking branch 'remotes/perso/db_as_contrib' into dev

Conflicts:
	rdc/etl/contrib/__init__.py
	rdc/etl/contrib/example/__init__.py
	rdc/etl/contrib/unittest/__init__.py
	rdc/etl/transform/extract/database.py
	rdc/etl/transform/join/database.py
	rdc/etl/transform/load/database.py
	rdc/etl/transform/misc/__init__.py
	rdc/etl/transform/misc/database.py
	rdc/etl/transform/simple.py
	src/rdc/etl/contrib/__init__.py
	src/rdc/etl/contrib/example/__init__.py
	src/rdc/etl/contrib/unittest/__init__.py
	src/rdc/etl/extra/db/__init__.py
	src/rdc/etl/extra/db/extract.py
	src/rdc/etl/extra/db/join.py
	src/rdc/etl/extra/db/load.py
	src/rdc/etl/extra/db/misc.py
	src/rdc/etl/extra/example.py
	src/rdc/etl/extra/simple.py
	src/rdc/etl/extra/unittest.py
	src/rdc/etl/job.py
	src/rdc/etl/transform/extract/database.py
	src/rdc/etl/transform/join/database.py
	src/rdc/etl/transform/load/database.py
	src/rdc/etl/transform/misc/__init__.py
	src/rdc/etl/transform/misc/database.py
	src/rdc/etl/transform/simple.py
Restoring version number scheme, cant go back now.