Merge branch 'hotfix_improve_articlelist_master'
select all sets in project if none given; fix stats for zero hits

Signed-off-by: Wouter van Atteveldt <wouter@vanatteveldt.com>
Merge branch 'hotfix_allsets'
do not take first digit of project id
Merge branch 'hotfix_allsets'
add total xaxis
Merge branch 'hotfix_total'
query_ids use filter dls
Merge branch 'hotfix_saveset'
Recovering by username is not supported anymore (it seems; disabling it so users won't encounter errors)
uidb36 --> uidb64 (Django 1.6)
added ArticleProvenance model
Eliminated double escaping labels, causing labels with a space to be non-highlighted.
Merge remote-tracking branch 'origin/dev' into dev
Revert "added ArticleProvenance model"

This reverts commit 1b076d3829dbde91e6eb99ed334ca8ef94a26016.
working on fixing unit tests
Updated upload script to work with the new controller
Fixed csv dialect not being found in csv importer
CSV import now adds remaining columns to metastring
Fixed upload_action template
switched log messages for prints in daily, to be reversed once logging is fixed
removed general index set functionality in daily
trivial changes, + a quick-n-dirty fix_gaps script