Fix gitlab integration test stage

By actually putting all the integration tests into their own stage we
can potentially reduce wasted CI time by not running them if the "test"
stage fails. Also we weren't actually using a "validate" stage since the
validate job was specifying it was using the "test" stage 

.gitlab-ci.yml

@@ -13,7 +13,6 @@ variables:
 
 stages:
   - test
-  - validate
   - integration-test
   - build
   - release
@@ -51,7 +50,7 @@ validate:
 
 integration-test-default:
   image: docker:dind
-  stage: test
+  stage: integration-test
   services:
     - name: docker:dind
       alias: docker
@@ -64,7 +63,7 @@ integration-test-default:
 
 integration-test-hopping:
   image: docker:dind
-  stage: test
+  stage: integration-test
   services:
     - name: docker:dind
       alias: docker
@@ -77,7 +76,7 @@ integration-test-hopping:
 
 integration-test-kcp:
   image: docker:dind
-  stage: test
+  stage: integration-test
   services:
     - name: docker:dind
       alias: docker
@@ -90,7 +89,7 @@ integration-test-kcp:
 
 integration-test-hopping-kcp:
   image: docker:dind
-  stage: test
+  stage: integration-test
   services:
     - name: docker:dind
       alias: docker
@@ -103,7 +102,7 @@ integration-test-hopping-kcp:
 
 integration-test-kcp-live-gw:
   image: docker:dind
-  stage: test
+  stage: integration-test
   services:
     - name: docker:dind
       alias: docker
@@ -125,7 +124,7 @@ integration-test-kcp-live-gw:
 
 integration-test-kcp-live-bridge:
   image: docker:dind
-  stage: test
+  stage: integration-test
   services:
     - name: docker:dind
       alias: docker
@@ -147,7 +146,7 @@ integration-test-kcp-live-bridge:
 
 integration-test-hopping-kcp-live-bridge:
   image: docker:dind
-  stage: test
+  stage: integration-test
   services:
     - name: docker:dind
       alias: docker
@@ -169,7 +168,7 @@ integration-test-hopping-kcp-live-bridge:
 
 integration-test-default-live-bridge:
   image: docker:dind
-  stage: test
+  stage: integration-test
   services:
     - name: docker:dind
       alias: docker