Adding Mapper job for import from aggregate blobs

Not working - getting error when trying to put:

“TypeError: _prepare_for_put() takes exactly 1 argument (2 given)
”
Fixed major logic error in import_aggregate_data

For copy paste reasons, the function was  iterating over the blob once
for each line in the blob - bad news;
Now storing DetectorEntry objects, but not speed sums;
Fixed SpeedSum setattr problem

daily_speed was not correctly declared in FreewayData.py
Merge pull request #5 from PSU-CloudData/mapperimport

Mapperimport