Update package.json

update version to v3.3.0

update to v3.2.2

update to v3.2.1

Merge pull request react-icons#195 from react-icons/some-update

Some update

Merge pull request react-icons#187 from austinpray/fix-uglify

Prefer es5 syntax in generated source for uglify-js@2 compat

Merge pull request react-icons#168 from react-icons/feat/context-attr

add attr option in context api

add babelrc