Merge branch 'docs-move-analytics-to-admin-panel' into 'master'

app/views/admin/cohorts/_cohorts_table.html.haml

app/views/admin/dev_ops_score/_no_data.html.haml

app/views/admin/dev_ops_score/show.html.haml

doc/README.md

doc/api/settings.md

doc/user/admin_area/analytics/convdev.md

doc/user/admin_area/analytics/dev_ops_score.md

doc/user/admin_area/analytics/img/cohorts.png

doc/user/admin_area/analytics/img/dev_ops_score_v12_6.png

doc/user/admin_area/analytics/index.md

doc/user/admin_area/analytics/user_cohorts.md

doc/user/admin_area/monitoring/convdev.md

doc/user/admin_area/monitoring/dev_ops_score.md

doc/user/admin_area/settings/usage_statistics.md

doc/user/admin_area/user_cohorts.md

doc/user/index.md

doc/user/instance_statistics/convdev.md

doc/user/instance_statistics/img/cohorts.png

doc/user/instance_statistics/img/dev_ops_score_v12_6.png

...tance_statistics/img/instance_statistics_button_v12_6.png