* Setup api / reducers / actions for gas.
* Implement gas price saga, fetch from component, and loading states. Blocked on CORS.
* Implement caching mechanism.
* Add tests for gas saga and reducer.
* More testing.
* Indicate that gas price is recommended when fetched from API.
* Hide track while loading.
* Fix tscheck.
* Check gas estimate before assuming its ok.
* Check for correct logical order of gas prices.
* Tscheck fixes.
* Initial crack at simple only gas slider component.
* Work on advanced component. Refactor redux and components to specify gas limit vs price.
* Convert fee summary to a render cbesque thing.
* Rework responsive columns.
* Remove force offline button.
* Tweak styles.
* Fix tscheck issues, remove unneeded prop.
* Fix references to GasField
* Gas slider in lite send.
* Make gas slider network-aware for symbol and price calculation.
William O'Beirne