Merge pull request #258 from teloxide/v08

Dump version `0.7.1` -> `0.8.0`

Merge pull request #245 from teloxide/r071

dump version

Merge pull request #240 from teloxide/fixup

fixup

Merge pull request #230 from teloxide/r063

Release `0.6.3`

Merge pull request #227 from teloxide/r062

Release `0.6.2`

Merge pull request #221 from teloxide/r061

Release `teloxide-core` v0.6.1

Merge pull request #211 from teloxide/r060

Release `teloxide-core` 0.6.0

Merge pull request #204 from teloxide/r051

Release v0.5.1

Merge pull request #202 from teloxide/r050

Prepare 0.5.0 release

Give a name to a magic number and document it