v0.2.2

Artem Starikov

@SnejUgal

a4553bcf · Merge branch 'release-v0.2.2' into 'master' · Sep 19, 2019

v0.2.2 fixes compilation error with serde >= 1.0.101, along with fixing wrong
field names serialized in types::inline_query::result::{Gif, Mpeg4Gif}.