OS-5798 imgadm should allow "+" in an image manifest "version", per semver

Reviewed by: Todd Whiteman <todd.whiteman@joyent.com>
Approved by: Todd Whiteman <todd.whiteman@joyent.com>

Author: trentm

src/img/CHANGES.md

@@ -6,6 +6,10 @@ Known issues:
   Docker Registry v1, which is now deprecated.
 
 
+## 3.7.0
+
+- OS-5798 Allow '+' in the image manifest "version" field.
+
 ## 3.6.2
 
 - OS-5335 docker image import should disallow meaningless operations

src/img/node_modules/imgmanifest/lib/imgmanifest.js

@@ -1,7 +1,7 @@
 {
   "name": "imgadm",
   "description": "Manage SmartOS virtual machine images.",
-  "version": "3.6.2",
+  "version": "3.7.0",
   "author": "Joyent (joyent.com)",
   "private": true,
   "dependencies": {
@@ -13,7 +13,7 @@
     "docker-registry-client": "git://github.com/joyent/node-docker-registry-client.git#765e74c",
     "extsprintf": "1.2.0",
     "findit2": "2.2.3",
-    "imgmanifest": "git://github.com/joyent/node-imgmanifest.git#4f80d8c",
+    "imgmanifest": "2.3.0",
     "mkdirp": "0.5.0",
     "node-uuid": "1.4.1",
     "once": "1.3.1",