oleg/vuex @ v2.3.0

tükrözi: https://github.com/vuejs/vuex.git

Evan You b821681863 fix esm build exports		8 éve
..
release.sh	8895d4b81e remove --next tag in release script	8 éve
rollup.config.js	b821681863 fix esm build exports	8 éve
rollup.logger.config.js	64a0785b4e adjust logger build	8 éve