upgrade dependencies
diff --git a/package-lock.json b/package-lock.json
index 7bfddee..0763c9b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,9 +4,9 @@
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-      "integrity": "sha1-0FVMIlZjbi9W58LlrRg/hZQo2B8="
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+      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
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@@ -170,9 +170,9 @@
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-      "integrity": "sha1-SLokC0WpKA6UdImQull9IWYX/UA="
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+      "resolved": "https://registry.npmjs.org/asn1.js/-/asn1.js-4.9.2.tgz",
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@@ -220,9 +220,9 @@
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-          "resolved": "https://registry.npmjs.org/postcss/-/postcss-5.2.17.tgz",
-          "integrity": "sha1-z09Ze4ZNZcikkrLqvp1wbIecOIs=",
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+          "resolved": "https://registry.npmjs.org/postcss/-/postcss-5.2.18.tgz",
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@@ -234,11 +234,23 @@
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-      "integrity": "sha1-IHzXBbumFImy6kG1MSNBz2rKIoM=",
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+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.12.2.tgz",
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+          "dev": true
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+          "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-1.5.1.tgz",
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@@ -248,20 +260,28 @@
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-      "integrity": "sha1-AnYgvuVnqIwyVhV05/0IAdMxGOQ="
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-      "integrity": "sha1-fdQrBGPHQunVKW3rPsZ6kyLa1yk=",
-      "dev": true
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+      "resolved": "https://registry.npmjs.org/babel-core/-/babel-core-6.26.0.tgz",
+      "integrity": "sha1-rzL3izGm/O8RnIew/Y2XU/A6C7g=",
+      "dev": true,
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-      "integrity": "sha1-M6GvcNXyiQrrRlpKd5PB32qeqfw=",
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@@ -278,9 +298,9 @@
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-      "integrity": "sha1-epdH8ljYlH0y1RX2qhx70CIEoIA="
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@@ -303,9 +323,9 @@
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-      "integrity": "sha1-024i+rEAjXnYhkjjIRaGgShFbOg="
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@@ -344,9 +364,9 @@
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@@ -389,9 +409,9 @@
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@@ -444,9 +464,9 @@
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@@ -459,10 +479,18 @@
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@@ -470,35 +498,35 @@
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-      "integrity": "sha1-M7mOql1IK7AajRqmtDetKwGuxBw="
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@@ -914,9 +942,9 @@
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@@ -931,9 +959,9 @@
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diff --git a/package.json b/package.json
index 9b4caa5..fac75c5 100644
--- a/package.json
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