update

See merge request alpha/physical!320

update

See merge request alpha/physical!319

update

See merge request alpha/physical!318

update

See merge request alpha/physical!317

update

See merge request alpha/physical!316

update

See merge request alpha/physical!315

update

See merge request alpha/physical!314

update

See merge request alpha/physical!313

Hk

See merge request alpha/physical!312

update

See merge request alpha/physical!311

revise history data

See merge request alpha/physical!310

revise history data

See merge request alpha/physical!309

revise read history

See merge request alpha/physical!308

# Conflicts:
#   linucb/views/collect_data.py
#   search/views/topic.py

Master

See merge request alpha/physical!306