anchor.diff:  === v1.0 (current)
   - Task #1.0.1 (DONE) BE core functionality
   
  -=== v1.1
  +=== v1.1 (BE in progress, Angular 2 FE is old and will be totally rewritten in v1.2)
   - Task #1.1.1 (DONE) create security service
   - Task #1.1.2 (DONE) use JPA for clients
   - Task #1.1.3 (DONE) create sql script for initial db data creation
  
positive.code: First update properties to you own db: `./rest/src/main/resources/application.properties`
  
  ```
  spring.datasource.url=jdbc:mysql://localhost/oauth2rest?createDatabaseIfNotExist=true
  spring.datasource.username=root
  spring.datasource.password=1
  ```
  
  Then:
  
  ```sh
  
negative.code: - Task #1.1.8 (70%) create role service and role controller
  - Task #1.1.9 (80%) ExceptionAdapter and Exception controller
  - Task #1.1.10 (60%) add company functionality to role service and role controller
  - Task #1.1.11 (60%) add Oval validation for entities
  
  === v1.2
  - initial React.js configuration
  
  === BUG
  - (BUG) Angular 2 SockJS error in zone.js
  