Changing of JS application architecture has begun.
`cd` command. Basic implementation.
Fix: getting shared objects
Escape html special chars in board's summary
Update help messages
Add the `ls` command. Show users list and boards list.
Get encoding from configuration
Threads list
Allow to move to a board
Feature: create a user.
Update response handler.
Fix: board summary
Feature: Create board
Features: Remove board. Remove user.
Fix: cd to user
Feature: update user password and roles.
Fix: `ls`: error message
Fix: close access to `rm` command
Feature: update a board
Feature: create thread
Merge branch 'master' into term-experiments