Beta 7 with some repo names changed.

Client/node_modules/eth-lib/src/nat.js

@@ -0,0 +1,57 @@
+const BN = require("bn.js");
+const Bytes = require("./bytes");
+
+const fromBN = bn =>
+  "0x" + bn.toString("hex");
+
+const toBN = str =>
+  new BN(str.slice(2), 16);
+
+const fromString = str => {
+  const bn = "0x" + (str.slice(0,2) === "0x"
+    ? new BN(str.slice(2), 16)
+    : new BN(str, 10)).toString("hex");
+  return bn === "0x0" ? "0x" : bn;
+}
+
+const toEther = wei =>
+  toNumber(div(wei, fromString("10000000000"))) / 100000000;
+
+const fromEther = eth =>
+  mul(fromNumber(Math.floor(eth * 100000000)), fromString("10000000000"));
+
+const toString = a =>
+  toBN(a).toString(10);
+
+const fromNumber = a =>
+  typeof a === "string"
+    ? (/^0x/.test(a) ? a : "0x" + a)
+    : "0x" + new BN(a).toString("hex");
+
+const toNumber = a =>
+  toBN(a).toNumber();
+
+const toUint256 = a =>
+  Bytes.pad(32, a);
+
+const bin = method => (a, b) =>
+  fromBN(toBN(a)[method](toBN(b)));
+
+const add = bin("add");
+const mul = bin("mul");
+const div = bin("div");
+const sub = bin("sub");
+
+module.exports = {
+  toString,
+  fromString,
+  toNumber,
+  fromNumber,
+  toEther,
+  fromEther,
+  toUint256,
+  add,
+  mul,
+  div,
+  sub
+}