* Revert "Move blocks to stable flag (https://github.com/woocommerce/woocommerce-blocks/pull/2261)"
This reverts commit a005649ab8.
* migrate to number based gating
* add todo to watch feature flag
* remove flags from build
* change flag in travis
* load flag in right order
* expose flag to js
* simplify flag definition
* more feature flags
* wrap flag in check
* add helper functions
* add helpers in PHP
* fix typo in flag
* move php code to src/domain/package
* tweak if condition
* return flag to travis
* fix broken block name
* introduce feature flags
* move config to webpack-helper
* remove package default
* add gating to frontendConfig and coreConfig
* add feature gating to PHP
* add flag to start command
* move code to Bootstrap.php
* remove flag from npm start
* add eslint rule
* add strict equal only rule
* update messages to use tokens
* update strictBinary to whitelistedFlag and add all tests
* update to correct messageId key
* add more tests
* highlight wrong flag