Merge pull request #1038 from ethereum/yann300-patch-8

.travis.yml

-language: node_js
-node_js:
-  - stable
-env:
-  - TEST_DIR=remix-lib
-  - TEST_DIR=remix-solidity
-  - TEST_DIR=remix-debug
-  - TEST_DIR=remix-tests
-  - TEST_DIR=remix-simulator
-script: 
-  - cd $TEST_DIR && npm install && npm test
-deploy:
-  provider: script
-  script: remix-debugger/ci/deploy_from_travis.sh
-  skip_cleanup: true
-  on:
-        branch: master
-        condition: $TEST_DIR = remix-debugger
-cache: false