Make .get_result() use the active dataset if none is provided
SS: use the new .get_result() syntax
Fix SS.search_jobs_not_done

Avoid it putting hidden users' submissions in the queue again and again.
SS: simplify token handling
SS: don't erase scores from RWS when active dataset is changed

Usually a dataset is activated only after it has been fully scored in
background. When that's not the case SS used to erase the scores of the
unscored submissions from RWS (just to push the new ones as soon as they
were available). After this commit scores that are readily available
will be pushed immediately, and the others will be kept unchanged until
they're scored again.
Manually create entry point scripts for services and web servers
Fix RWS functional test
Fix dataset results cloning in AWS
Remove unused code
Small improvements
Reduce the use of __file__

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