Remove braindump directory

Created by: stefanoborini

The braindump directory coming from the meeting with EnginSoft is now obsolete by the actual code. Removed it for cleanness.

braindump/datasource.py

-class DataSource():
-    """Base class that performs calculation or extraction of information
-    """
-    __metaclass__ = abc.ABCMeta
-
-    def __init__(self, name):
-        self.name = name
-
-    @abstractclassmethod
-    def provides(cls):
-        return [CUBA.key]
-
-    def execute(self, parameters):
-        """Performs the evaluation and returns a list of Result.
-        """
-
-
-class Simulator(DataSource):
-    pass
-
-
-class Database(DataSource):
-    pass
-
-
-# Represents the result of a simulator.
-# It contains the resulting cuba key, the associated uncertainty and the
-# originating simulator.
-# Difference between uncertainty and quality: uncertainty is a numerical value
-# of the value, as in the case of an experimental simulation.
-# quality is the level of accuracy of the (e.g.c omputational) method, as
-# the importance and reliability of that value. It should be an enumeration
-# value such as HIGH, MEDIUM, POOR
-Result = namedtuple("Result", "cuba_key value uncertainty originator quality")
-