minor #536 Update security-checker and uncomment this check on Travis CI (bocharsky-bw)

This PR was squashed before being merged into the master branch (closes #536).

Discussion
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Update security-checker and uncomment this check on Travis CI

Looks security checker should work now

Commits
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6e58a7c Update security-checker and uncomment this check on Travis CI

Author: javiereguiluz

.travis.yml

@@ -37,4 +37,4 @@ script:
   # this checks that the Twig template files contain no syntax errors
   - ./bin/console lint:twig app/Resources @CodeExplorerBundle
   # this checks that the application doesn't use dependencies with known security vulnerabilities
-  #- ./bin/console security:check
+  - ./bin/console security:check --end-point=http://security.sensiolabs.org/check_lock