Switch to metadata.json for Puppet forge releases

Since puppet 3.x, Puppet Labs Forge accept only the metadata.json file
for module description (Modulefile is now deprecated).

This patch :
 - convert the Modulefile to metadata.json.
 - bump major version to 5 (for juno), and deps.
 - switch to stackforge namespace.
 - relax pe version_requirement to 3.x.

Change-Id: I173b13fe1ab32a3e32cc1581455333bea1eddf6d

Modulefile

@@ -1,13 +0,0 @@
-name         'puppetlabs-glance'
-version      '4.0.0'
-author       'Puppet Labs and StackForge Contributors'
-license      'Apache License 2.0'
-summary      'Puppet module for OpenStack Glance'
-description  'Installs and configures OpenStack Glance (Image Service).'
-project_page 'https://launchpad.net/puppet-glance'
-source       'https://github.com/stackforge/puppet-glance'
-
-dependency 'puppetlabs/inifile', '>=1.0.0 <2.0.0'
-dependency 'puppetlabs/keystone', '>=4.0.0 <5.0.0'
-dependency 'puppetlabs/stdlib', '>=4.0.0 <5.0.0'
-dependency 'stackforge/openstacklib', '>=5.0.0'

metadata.json

@@ -0,0 +1,39 @@
+{
+  "name": "stackforge-glance",
+  "version": "5.0.0",
+  "author": "Puppet Labs and StackForge Contributors",
+  "summary": "Puppet module for OpenStack Glance",
+  "license": "Apache License 2.0",
+  "source": "git://github.com/stackforge/puppet-glance.git",
+  "project_page": "https://launchpad.net/puppet-glance",
+  "issues_url": "https://bugs.launchpad.net/puppet-glance",
+  "requirements": [
+    { "name": "pe","version_requirement": "3.x" },
+    { "name": "puppet","version_requirement": "3.x" }
+  ],
+  "operatingsystem_support": [
+    {
+      "operatingsystem": "Debian",
+      "operatingsystemrelease": ["7"]
+    },
+    {
+      "operatingsystem": "Fedora",
+      "operatingsystemrelease": ["20"]
+    },
+    {
+      "operatingsystem": "RedHat",
+      "operatingsystemrelease": ["6.5","7"]
+    },
+    {
+      "operatingsystem": "Ubuntu",
+      "operatingsystemrelease": ["12.04","14.04"]
+    }
+  ],
+  "description": "Installs and configures OpenStack Glance (Image Service).",
+  "dependencies": [
+    { "name": "puppetlabs/inifile", "version_requirement": ">=1.0.0 <2.0.0" },
+    { "name": "stackforge/keystone", "version_requirement": ">=5.0.0 <6.0.0" },
+    { "name": "puppetlabs/stdlib", "version_requirement": ">=4.0.0 <5.0.0" },
+    { "name": "stackforge/openstacklib", "version_requirement": ">=5.0.0" }
+  ]
+}