correct .gitignore
Merge branch 'issue-10' into develop
not use DI configuration
Merge branch 'issue-9' into develop
use PSR-4
rename phpunit config file
add dir for tests
Merge branch 'issue-12' into develop
update travis config
add scrutinizer config
add build icons
add tests for DI and event listener
add newline at end of files
Merge branch 'issue-8' into develop