Merge branch 'feature/servlets' into 'master'

src/main/java/com/s3ai/controllers/tickets/TicketsEdit.java

src/main/java/com/s3ai/controllers/tickets/TicketsFill.java

src/main/java/com/s3ai/controllers/tickets/TicketsList.java

...main/java/com/s3ai/controllers/tickets/TicketsUpdate.java

src/main/java/com/s3ai/controllers/users/UsersEdit.java

src/main/java/com/s3ai/controllers/users/UsersFill.java

src/main/java/com/s3ai/controllers/users/UsersList.java

src/main/java/com/s3ai/controllers/users/UsersUpdate.java