Fix backport label check

See merge request noc/noc!2275

flake8: Disable E203 check

See merge request noc/noc!2273

noc/noc#1047 Delete unused code from prefix delete_recursive.

See merge request noc/noc!2259

Lower articats time

See merge request noc/noc!2272

Replace yapf with black

See merge request noc/noc!2253

Check MR labels

See merge request noc/noc!2222

Build docs when merging to master

See merge request noc/noc!2252

Skip send_on_syntax_error when beef cli_error.

See merge request noc/noc!2270

Fix ObjectId import

See merge request noc/noc!2266

Remove unused cm templates

See merge request noc/noc!2264

2to3: `next` fix

See merge request noc/noc!2265

2to3: zip fix

See merge request noc/noc!2263

Explicit MongoDB database connection

See merge request noc/noc!2261

Django 1.11

See merge request noc/noc!2262

Django 1.10

See merge request noc/noc!2257