fix: .snyk & package.json to reduce vulnerabilities

The following vulnerabilities are fixed with a Snyk patch:
- https://snyk.io/vuln/npm:lodash:20180130

.snyk

@@ -0,0 +1,8 @@
+# Snyk (https://snyk.io) policy file, patches or ignores known vulnerabilities.
+version: v1.12.0
+ignore: {}
+# patches apply the minimum changes required to fix a vulnerability
+patch:
+  'npm:lodash:20180130':
+    - '@dadi/logger > aws-kinesis-writable > lodash':
+        patched: '2018-07-05T23:23:10.204Z'

package.json

@@ -8,15 +8,18 @@
     "test": "snazzy 'lib/*.js' && env NODE_ENV=test ./node_modules/.bin/istanbul cover --report cobertura --report text --report html --report lcov ./node_modules/mocha/bin/_mocha",
     "posttest": "./scripts/coverage.js",
     "start": "node ./index.js --node-env=development",
-    "semantic-release": "semantic-release pre && npm publish && semantic-release post"
+    "semantic-release": "semantic-release pre && npm publish && semantic-release post",
+    "snyk-protect": "snyk protect",
+    "prepare": "npm run snyk-protect"
   },
   "dependencies": {
     "@dadi/logger": "^1.0.0",
     "colors": "^1.1.2",
     "console-stamp": "^0.2.5",
     "convict": "^4.0.0",
     "mkdirp": "^0.5.1",
-    "rsmq-worker": "^0.4.3"
+    "rsmq-worker": "^0.4.3",
+    "snyk": "^1.88.1"
   },
   "devDependencies": {
     "env-test": "^1.0.0",
@@ -38,5 +41,6 @@
     "type": "git",
     "url": "https://github.com/dadi/queue.git"
   },
-  "author": "Robert Stanford <rs@dadi.co>"
+  "author": "Robert Stanford <rs@dadi.co>",
+  "snyk": true
 }