added connector_answers and djcelery
added test connector asnwer
Merge branch 'devel' into connector_answers
Merge branch 'devel' into connector_answers
added first draft of urls for answers framework
computation of number of data points per user
first draft of answer connector
updated schedule structure, work in progress
renamed test question to statistics question
added locks for task
added connector_answer endpoint
now using qa collections
added all phone collections to compute statistics on
statistics questions now working