Development to master (#522)

* Change ETH to WETH in fallback.json

* #512 Market graph (#514)

* MarketGraph fixes, don't low current date on the graph if it has been resolved, fetch latest 15 trades, call fetchMarketTrades inside MarketGraph PM-777

* Trades fetch algorithm WIP PM-777

* Finish marketGraphFetch PM-777

* Fix trades limit

* Remove unnecessary await

* Increase version in package.json

* Use terser instead of uglify to fix build bug

* Update package.json version to 0.6.0

* Fix releases build of Travis