extracted ListRestHelper and DatabaseTestCase from TranslateBundle
update composer requirements
init travis ci
update requirement
add gitigonre
extended database test
update doc header
implemented ListRestHelper and Repository
code review & cleanup
refactored listrepository logic moved to list query builder
reformat code
code review & cleanup
Merge branch 'feature/list-service' into develop
fixed namespace bug => helper = repository
added abstract rest controller
implemented method for rest put
added newline
review & rename
Merge branch 'feature/abstract-rest-controller' into develop
implemented abstract getById action