Big pull, see comment

1. Rename modules artifactId, groupId
2. Add central managmet of dependencies
3. Add user entity, dao, hibernateDao, hibernateDao test
4. Add task executer module. This module will provide a server, which will execute tasks in database.
5. Add databaseapi dependency for modules - webportal, taskexecuter
6. Add git ignore files - iml, class
7. Add git ignore folders - target
8. Remove .idea folders
9. Fix test names. If you want to run test from maven automatically, test should have name - "*Test" or "Test*"