v2.3.7: version bump for dependencies, upstream breaking change

package.json

@@ -1,6 +1,6 @@
 {
   "name": "greenlock",
-  "version": "2.3.6",
+  "version": "2.3.7",
   "description": "Let's Encrypt for node.js on npm",
   "main": "index.js",
   "files": [
@@ -14,37 +14,24 @@
     "url": "https://git.coolaj86.com/coolaj86/greenlock.js.git"
   },
   "keywords": [
-    "acmev2",
-    "acmev02",
-    "acme-v2",
-    "acme-v02",
-    "acme",
-    "acme2",
-    "acme11",
-    "acme-draft11",
-    "acme-draft-11",
+    "Let's Encrypt",
+    "letsencrypt",
+    "ACME",
+    "v2",
+    "v02",
+    "draft-11",
+    "draft-12",
     "auto-sni",
     "draft",
     "11",
-    "free ssl",
-    "free https",
-    "free",
-    "ssl",
+    "12",
+    "Free SSL",
+    "Automated HTTPS",
     "tls",
     "https",
-    "Let's Encrypt",
-    "letsencrypt",
-    "letsencrypt-v2",
-    "letsencrypt-v02",
-    "letsencryptv2",
-    "letsencryptv02",
-    "letsencrypt2",
-    "v2",
-    "v02",
     "Greenlock",
     "letsencrypt.org",
     "le",
-    "lejs",
     "le.js",
     "node",
     "nodejs",
@@ -67,7 +54,7 @@
   },
   "dependencies": {
     "acme": "^1.0.6",
-    "acme-v2": "^1.1.1",
+    "acme-v2": "^1.2.0",
     "asn1js": "^1.2.12",
     "certpem": "^1.0.0",
     "le-challenge-fs": "^2.0.2",