Add phpunit for unit testing of this bundle
 #6  Add Latest Tweet block
 #6 launch test with phpunit on travis
 #6 launch composer install when testing on travis
 #14 remove unused use statement
Merge pull request #16 from BenoitLeveque/issue_14-insight-remove-unused-use-statement

[Insight] Remove unused use statement
Merge pull request #10 from BenoitLeveque/add-twitter-latest-tweets

Add twitter latest tweets block