diff --git a/.babelrc b/.babelrc
index afe26ee..1984c02 100644
--- a/.babelrc
+++ b/.babelrc
@@ -1,5 +1,5 @@
 {
-  "presets": ["es2015", "stage-2"],
+  "presets": ["es2015", "stage-0"],
   "plugins": ["transform-flow-comments"],
   "compact": true,
   "comments": false,
diff --git a/package-lock.json b/package-lock.json
index 67d1b5d..00651fc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -351,6 +351,12 @@
       "integrity": "sha1-a8lj67FuzLrmuStZbrfzXDQqi5o=",
       "dev": true
     },
+    "babel-plugin-syntax-class-constructor-call": {
+      "version": "6.18.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-syntax-class-constructor-call/-/babel-plugin-syntax-class-constructor-call-6.18.0.tgz",
+      "integrity": "sha1-nLnTn+Q8hgC+yBRkVt3L1OGnZBY=",
+      "dev": true
+    },
     "babel-plugin-syntax-class-properties": {
       "version": "6.13.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-syntax-class-properties/-/babel-plugin-syntax-class-properties-6.13.0.tgz",
@@ -363,6 +369,12 @@
       "integrity": "sha1-MSVjtNvePMgGzuPkFszurd0RrAs=",
       "dev": true
     },
+    "babel-plugin-syntax-do-expressions": {
+      "version": "6.13.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-syntax-do-expressions/-/babel-plugin-syntax-do-expressions-6.13.0.tgz",
+      "integrity": "sha1-V0d1YTmqJtOQ0JQQsDdEugfkeW0=",
+      "dev": true
+    },
     "babel-plugin-syntax-dynamic-import": {
       "version": "6.18.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-syntax-dynamic-import/-/babel-plugin-syntax-dynamic-import-6.18.0.tgz",
@@ -375,12 +387,24 @@
       "integrity": "sha1-nufoM3KQ2pUoggGmpX9BcDF4MN4=",
       "dev": true
     },
+    "babel-plugin-syntax-export-extensions": {
+      "version": "6.13.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-syntax-export-extensions/-/babel-plugin-syntax-export-extensions-6.13.0.tgz",
+      "integrity": "sha1-cKFITw+QiaToStRLrDU8lbmxJyE=",
+      "dev": true
+    },
     "babel-plugin-syntax-flow": {
       "version": "6.18.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-syntax-flow/-/babel-plugin-syntax-flow-6.18.0.tgz",
       "integrity": "sha1-TDqyCiryaqIM0lmVw5jE63AxDI0=",
       "dev": true
     },
+    "babel-plugin-syntax-function-bind": {
+      "version": "6.13.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-syntax-function-bind/-/babel-plugin-syntax-function-bind-6.13.0.tgz",
+      "integrity": "sha1-SMSV8Xe98xqYHnMvVa3AvdJgH0Y=",
+      "dev": true
+    },
     "babel-plugin-syntax-object-rest-spread": {
       "version": "6.13.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-syntax-object-rest-spread/-/babel-plugin-syntax-object-rest-spread-6.13.0.tgz",
@@ -405,6 +429,12 @@
       "integrity": "sha1-ZTbjeK/2yx1VF6wOQOs+n8jQh2E=",
       "dev": true
     },
+    "babel-plugin-transform-class-constructor-call": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-class-constructor-call/-/babel-plugin-transform-class-constructor-call-6.24.1.tgz",
+      "integrity": "sha1-gNwoVQWsBn3LjWxl4vbxGrd2Xvk=",
+      "dev": true
+    },
     "babel-plugin-transform-class-properties": {
       "version": "6.24.1",
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-class-properties/-/babel-plugin-transform-class-properties-6.24.1.tgz",
@@ -417,6 +447,12 @@
       "integrity": "sha1-eIAT2PjGtSIr33s0Q5Df13Vp4k0=",
       "dev": true
     },
+    "babel-plugin-transform-do-expressions": {
+      "version": "6.22.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-do-expressions/-/babel-plugin-transform-do-expressions-6.22.0.tgz",
+      "integrity": "sha1-KMyvkoEtlJws0SgfaQyP3EaK6bs=",
+      "dev": true
+    },
     "babel-plugin-transform-es2015-arrow-functions": {
       "version": "6.22.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-arrow-functions/-/babel-plugin-transform-es2015-arrow-functions-6.22.0.tgz",
@@ -555,12 +591,24 @@
       "integrity": "sha1-KrDJx/MJj6SJB3cruBP+QejeOg4=",
       "dev": true
     },
+    "babel-plugin-transform-export-extensions": {
+      "version": "6.22.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-export-extensions/-/babel-plugin-transform-export-extensions-6.22.0.tgz",
+      "integrity": "sha1-U3OLR+deghhYnuqUbLvTkQm75lM=",
+      "dev": true
+    },
     "babel-plugin-transform-flow-comments": {
       "version": "6.22.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-flow-comments/-/babel-plugin-transform-flow-comments-6.22.0.tgz",
       "integrity": "sha1-jZSREy8rSKvQZW+Wwg87vW/BdSk=",
       "dev": true
     },
+    "babel-plugin-transform-function-bind": {
+      "version": "6.22.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-function-bind/-/babel-plugin-transform-function-bind-6.22.0.tgz",
+      "integrity": "sha1-xvuOlqwpajELjPjqQBRiQH3fapc=",
+      "dev": true
+    },
     "babel-plugin-transform-object-rest-spread": {
       "version": "6.23.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-object-rest-spread/-/babel-plugin-transform-object-rest-spread-6.23.0.tgz",
@@ -597,6 +645,18 @@
       "integrity": "sha1-+QC/k+LrwNJ235uKtZck6/2Vn4s=",
       "dev": true
     },
+    "babel-preset-stage-0": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-preset-stage-0/-/babel-preset-stage-0-6.24.1.tgz",
+      "integrity": "sha1-VkLRUEL5E4TX5a+LyIsduVsDnmo=",
+      "dev": true
+    },
+    "babel-preset-stage-1": {
+      "version": "6.24.1",
+      "resolved": "https://registry.npmjs.org/babel-preset-stage-1/-/babel-preset-stage-1-6.24.1.tgz",
+      "integrity": "sha1-dpLNfc1oSZB+auSgqFWJz7niv7A=",
+      "dev": true
+    },
     "babel-preset-stage-2": {
       "version": "6.24.1",
       "resolved": "https://registry.npmjs.org/babel-preset-stage-2/-/babel-preset-stage-2-6.24.1.tgz",
@@ -757,12 +817,6 @@
       "resolved": "https://registry.npmjs.org/buffer-shims/-/buffer-shims-1.0.0.tgz",
       "integrity": "sha1-mXjOMXOIxkmth5MCjDR37wRKi1E="
     },
-    "bufferstreams": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/bufferstreams/-/bufferstreams-1.1.1.tgz",
-      "integrity": "sha1-AWE3MGCsWYjv+ZBYcxEU9uGV1R4=",
-      "dev": true
-    },
     "builtin-modules": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-1.1.1.tgz",
@@ -2734,12 +2788,6 @@
       "integrity": "sha1-A+O/mxkgep3Gh7EHNORyzX6JX4U=",
       "dev": true
     },
-    "gulp-htmlmin": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/gulp-htmlmin/-/gulp-htmlmin-3.0.0.tgz",
-      "integrity": "sha1-GeqAAtEjHWsfGKEtIPKmand3D7M=",
-      "dev": true
-    },
     "gulp-json-modify": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/gulp-json-modify/-/gulp-json-modify-1.0.2.tgz",
diff --git a/package.json b/package.json
index 62b4036..5871e4e 100644
--- a/package.json
+++ b/package.json
@@ -54,6 +54,7 @@
     "babel-plugin-transform-flow-comments": "^6.22.0",
     "babel-preset-es2015": "^6.24.0",
     "babel-preset-es2016": "^6.22.0",
+    "babel-preset-stage-0": "^6.24.1",
     "babel-preset-stage-2": "^6.22.0",
     "concurrently": "^3.4.0",
     "connect-livereload": "^0.6.0",