Separate tasks in testing

Signed-off-by: Valentin Popov <info@valentineus.link>

.travis.yml

@@ -1,5 +1,8 @@
 language: php
 
+jobs:
+  include:
+    - stage: test
       sudo: true
 
       addons:
@@ -22,14 +25,7 @@ php:
 
       env:
         global:
-    - MOODLE_BRANCH=MOODLE_29_STABLE
-    - MOODLE_BRANCH=MOODLE_30_STABLE
-    - MOODLE_BRANCH=MOODLE_31_STABLE
-    - MOODLE_BRANCH=MOODLE_32_STABLE
-    - MOODLE_BRANCH=MOODLE_33_STABLE
-    - MOODLE_BRANCH=MOODLE_34_STABLE
           - MOODLE_BRANCH=MOODLE_35_STABLE
-
         matrix:
           - DB=mysqli
           - DB=pgsql
@@ -57,12 +53,9 @@ script:
         - moodle-plugin-ci phpunit
         - moodle-plugin-ci behat
 
-jobs:
-  include:
-    stage: deploy
-
+    - stage: deploy
       before_deploy:
-      - cd $TRAVIS_REPO_SLUG
+        - cd "$TRAVIS_REPO_SLUG"
         - git stash --all
         - /bin/sh build.sh