Updte deps and move output JS to build folder

.gitignore

@@ -8,7 +8,7 @@
 /coverage
 
 # Output
-index.js
+build
 
 # MacOS
 .DS_Store

package.json

@@ -6,7 +6,7 @@
     "type": "git",
     "url": "https://github.com/PeculiarVentures/webcrypto.git"
   },
-  "main": "index.js",
+  "main": "build/webcrypto.js",
   "types": "index.d.ts",
   "scripts": {
     "test": "mocha",
@@ -44,8 +44,8 @@
     "@types/node": "^10.12.26",
     "coveralls": "^3.0.2",
     "mocha": "^5.2.0",
-    "nyc": "^13.2.0",
-    "rollup": "^1.1.2",
+    "nyc": "^13.3.0",
+    "rollup": "^1.2.2",
     "rollup-plugin-typescript": "^1.0.0",
     "ts-node": "^7.0.1",
     "typescript": "^3.3.3"
@@ -56,7 +56,7 @@
     "asn1js": "^2.0.21",
     "pvtsutils": "^1.0.3",
     "tslib": "^1.9.3",
-    "webcrypto-core": "^1.0.4"
+    "webcrypto-core": "^1.0.5"
   },
   "nyc": {
     "extension": [