Bump copyright dates to 2020

[victornoel]

Everything is in the title, we should bump the copyright dates to 20192020.

[0crat]

@paulodamaso/z please, pay attention to this issue

[paulodamaso]

@0crat in

[0crat]

@0crat in (here)

@paulodamaso Job #94 is now in scope, role is DEV

[0crat]

Bug was reported, see §29: +15 point(s) just awarded to @victornoel/z

[0crat]

The job #94 assigned to @marceloamadeu/z, here is why; the budget is 30 minutes, see §4; please, read §8 and §9; if the task is not clear, read this and this; there will be no monetary reward for this job

[0crat]

Job gh:yegor256/cactoos-http#94 already assigned to @marceloamadeu, can't assign to @marceloamadeu

[0crat]

The job #94 assigned to @Roman-Kuvaldin/z, here is why; the budget is 30 minutes, see §4; please, read §8 and §9; if the task is not clear, read this and this; there will be no monetary reward for this job

[0crat]

The architect of the project has changed; @paulodamaso/z is not at this role anymore; @victornoel/z is the architect now

[victornoel]

@0crat in

[0crat]

I'm not managing yegor256/cactoos-http GitHub repository, you have to contact me in Slack first, see §11