Update .travis.yml

.travis.yml

@@ -2,18 +2,15 @@ language: elixir
 services:
   - postgresql
 elixir:
-  - 1.9
+  - 1.10
 otp_release:
-  - 22.0
+  - 22.2
 env:
   - MIX_ENV=test
 cache:
   directories:
     - deps
     - _build/
-branches:
-  only:
-  - master
 before_script:
   - psql -c 'create database teslamate_test;' -U postgres
   - psql -c "ALTER USER postgres WITH PASSWORD 'postgres';" -U postgres