Bump to v2.1.41

Bump version to 2.1.40

Bump version to 2.1.39

Bump version to 2.1.38

Bump version to 2.1.37

Bump version to 2.1.36

Bump version to 2.1.35

Merge pull request racer-rust#1105 from kngwyu/release-2.1.33

Bump version to 2.1.33

Cargo update

Merge pull request racer-rust#1092 from racer-rust/v2.1.31

Bump version to 2.1.31