* Jestify migrations/
* Lint exclude migrations from mocha config, and add inclusion to jest config
* Add migration tests to jest config
* Exclude/ignore migration tests
* Set process.env.IN_TEST to true when running tests locally
* Replace hardcoded sent ether label on confirm screen
* replace transaction type SENT_ETHER with network agnostic SENDING_NATIVE_ASSET
* remove sentEther translation base
* make backwards compatible with lingering transaction of legacy sentEther type
* update localalization files
* fixup legacy sentEther transaction type
* changing new transaction type away from localization string
* revert migration tests
* update fixtures and test data
* update name of new transaction type
* add migration
* remove legacy SENT_ETHER from transaction types enum object
