/enterprise -> /ee (docker#415)

* /enterprise -> /ee
* /datacenter/dtr/2.5 -> /ee/dtr/
* /datacenter/ucp/3.0->/ee/ucp
* Fix configs
* Fix broken images
* Remove unused images for DTR
* Remove unused images for UCP
* Add a few redirects to avoid breaking beta exercises

_config.yml

@@ -31,7 +31,7 @@ ucp_version: "3.0"
 
 ucp_versions:
   - version: "3.0"
-    path: /datacenter/ucp/3.0/guides/
+    path: /ee/ucp/
     latest: true
   - version: "2.2"
     path: /datacenter/ucp/2.2/guides/
@@ -44,7 +44,7 @@ ucp_versions:
 
 dtr_versions:
   - version: "2.5"
-    path: /datacenter/dtr/2.5/guides/
+    path: /ee/dtr/
     latest: true
   - version: "2.4"
     path: /datacenter/dtr/2.4/guides/
@@ -151,7 +151,7 @@ defaults:
       dtr_latest_image: "docker/dtr:2.5.0"
       enterprise: true
   - scope:
-      path: "datacenter/dtr/2.5"
+      path: "ee/dtr"
     values:
       dtr_org: "docker"
       dtr_repo: "dtr"
@@ -187,7 +187,7 @@ defaults:
       ucp_version: "1.1"
       dtr_version: "2.0"
   - scope:
-      path: "datacenter/ucp/3.0"
+      path: "ee/ucp"
     values:
       ucp_org: "docker"
       ucp_repo: "ucp"

_config_authoring.yml

@@ -30,7 +30,7 @@ ucp_version: "3.0"
 
 ucp_versions:
   - version: "3.0"
-    path: /datacenter/ucp/3.0/guides/
+    path: /ee/ucp/
     latest: true
   - version: "2.2"
     path: /datacenter/ucp/2.2/guides/
@@ -43,7 +43,7 @@ ucp_versions:
 
 dtr_versions:
   - version: "2.5"
-    path: /datacenter/dtr/2.5/guides/
+    path: /ee/dtr/
     latest: true
   - version: "2.4"
     path: /datacenter/dtr/2.4/guides/

_layouts/docs.html

@@ -137,7 +137,7 @@ <h1>{{ page.title }}</h1>{% endif %} {% if page.advisory %}
 								{% capture enterprise_advisory %}<blockquote>
 								<p>These instructions require Docker Enterprise</p>
 								<p>The UI instructions shown here are for the dashboard provided with
-								<a href="/enterprise/#docker-ee-feature-tiers">Docker Enterprise Standard</a>
+								<a href="/ee/">Docker Enterprise Standard</a>
 								or higher.</p></blockquote>
 								{% if page.whole_page_ee %}{{ enterprise_advisory }}{% endif %}{% endcapture %}
 								{% if page.intro %}{{ page.intro | markdownify }}{% else %}{{ page.description | markdownify }}{% endif %}