fix: update dependencies (fixes #49)

package.json

@@ -5,30 +5,30 @@
     "url": "http://gajus.com"
   },
   "dependencies": {
-    "ajv": "^5.0.0",
-    "ajv-keywords": "^2.0.0",
-    "chalk": "^1.1.1",
-    "lodash": "^4.0.0",
-    "slice-ansi": "0.0.4",
-    "string-width": "^2.0.0"
+    "ajv": "^5.2.3",
+    "ajv-keywords": "^2.1.0",
+    "chalk": "^2.1.0",
+    "lodash": "^4.17.4",
+    "slice-ansi": "1.0.0",
+    "string-width": "^2.1.1"
   },
   "description": "Formats data into a string table.",
   "devDependencies": {
-    "ajv-cli": "^2.0.0",
-    "babel": "^6.5.2",
-    "babel-cli": "^6.14.0",
-    "babel-core": "^6.14.0",
-    "babel-plugin-istanbul": "^2.0.3",
-    "babel-preset-es2015-node4": "^2.1.0",
-    "babel-register": "^6.14.0",
-    "chai": "^3.4.1",
-    "eslint": "^3.5.0",
-    "eslint-config-canonical": "^1.8.6",
-    "gitdown": "^2.4.0",
-    "husky": "^0.11.7",
-    "mocha": "^3.0.2",
-    "nyc": "^8.3.1",
-    "sinon": "^1.17.2"
+    "ajv-cli": "^2.1.0",
+    "babel": "^6.23.0",
+    "babel-cli": "^6.26.0",
+    "babel-core": "^6.26.0",
+    "babel-plugin-istanbul": "^4.1.5",
+    "babel-preset-es2015-node4": "^2.1.1",
+    "babel-register": "^6.26.0",
+    "chai": "^4.1.2",
+    "eslint": "^4.7.2",
+    "eslint-config-canonical": "^9.3.1",
+    "gitdown": "^2.5.1",
+    "husky": "^0.14.3",
+    "mocha": "^3.5.3",
+    "nyc": "^11.2.1",
+    "sinon": "^4.0.0"
   },
   "keywords": [
     "ascii",