Fix travis test matrix

Author: danschultzer

.travis.yml

@@ -1,23 +1,22 @@
 language: elixir
-env:
-  - MIX_ENV=test
-  - UUID=resource_owners MIX_ENV=test
-  - UUID=all MIX_ENV=test
 sudo: false
 matrix:
   include:
     - elixir: 1.4
       otp_release: 19.0
+      env: MIX_ENV=test
     - elixir: 1.5
       otp_release: 19.0
+      env: MIX_ENV=test
     - elixir: 1.6
       otp_release: 20.0
+      env: MIX_ENV=test
     - elixir: 1.7
       otp_release: 20.0
-      env: UUID=resource_owners MIX_ENV=test
+      env: MIX_ENV=test UUID=resource_owners
     - elixir: 1.7
       otp_release: 20.0
-      env: UUID=all MIX_ENV=test
+      env: MIX_ENV=test UUID=all
 script:
   - mix deps.compile
   - mix test