remove node_modules and .gitignore them

node_modules/es5-ext/math/cosh/implement.js

@@ -1,10 +0,0 @@
-"use strict";
-
-if (!require("./is-implemented")()) {
-	Object.defineProperty(Math, "cosh", {
-		value: require("./shim"),
-		configurable: true,
-		enumerable: false,
-		writable: true
-	});
-}

node_modules/es5-ext/math/cosh/index.js

@@ -1,3 +0,0 @@
-"use strict";
-
-module.exports = require("./is-implemented")() ? Math.cosh : require("./shim");

node_modules/es5-ext/math/cosh/is-implemented.js

@@ -1,7 +0,0 @@
-"use strict";
-
-module.exports = function () {
-	var cosh = Math.cosh;
-	if (typeof cosh !== "function") return false;
-	return cosh(1) === 1.5430806348152437;
-};

node_modules/es5-ext/math/cosh/shim.js

@@ -1,11 +0,0 @@
-"use strict";
-
-var exp = Math.exp;
-
-module.exports = function (value) {
-	if (isNaN(value)) return NaN;
-	value = Number(value);
-	if (value === 0) return 1;
-	if (!isFinite(value)) return Infinity;
-	return (exp(value) + exp(-value)) / 2;
-};