Upgrade gwt-chosen to 1.2.0
Work on MongoDB database UI
Test MongoDB connection
* Refactor Project/Database relation
* Add @Unique validator
* add bean validation (@Unique)
* remove AlreadyExistsExceptions
* refactor user UI
Refactor user UI
Add sql database url example
Save default storage database
Prepare project using default storage database
Prepare project using default storage database
Use ProjectFactoryDto
Project creation