Version 1.18.0

- Added DPOS and Coin client API to interact with the builtin contracts.
- Added withdrawERC20Async, withdrawETHAsync methods to TransferGateway
  client API to allow withdrawal of ERC20 & ETH from DAppChain to
  Mainnet.

package.json

@@ -5,7 +5,7 @@
     "name": "Loom Network",
     "url": "https://loomx.io"
   },
-  "version": "1.17.0",
+  "version": "1.18.0",
   "keywords": [
     "blockchain",
     "dappchain"