TODO
  ====

  - [rse]: invalid login produces no error message on new dialog page
  - [rse]: "PageTemplate" in tabea.cfg still not used at all
        [ps] done
  - [rse]: "PageStyleSheet" should be add to tabea.cfg for CSS1
        [ps] "integrated" to "PageTempleate"
  - [rse]: "LogFile" should be added to tabea.cfg for logging
        [ps] Logging appended

  Dialogs:

  1:
  +-----------------------------+
  |     Login:    rse           |
  |     Password: ******        |
  |          [LOGIN] -> #2      |
  +-----------------------------+

  2:
  +-----------------------------+
  |  Templates (any-protected/any-public):
  |  +-----------------+ 
  |  | default         | [VIEW] -> #3 (read-only)
  |  | test            | [COPY]
  |  +-----------------+
  |  Configurations (own-private/any-public):
  |  +-----------------+ [VIEW] -> #3 (read-only)
  |  | default         | [EDIT] -> #3 (read-write)
  |  | myclient01      | [DELETE]
  |  | myclient01      | [CLONE]
  |  | myclient02      | [USE] -> sudo js_prepare -f ...
  |  +-----------------+ [TYPE] [CHANGE]
  |  [BACK] -> #1  
  +-----------------------------+

  3:
  +-----------------------------+
  |  myclient02:
  |  
  |  [BACK] -> #2  
  +-----------------------------+


- Solve "Back" errror               done [ps]
- Write back edited file            done [ps]
- Read config file                  done [ps]
- User name in configuration list   done [ps]
- Define the other submit buttons   done [ps]
- Create Admin section              done [ps]
- Create Logout Button              done [ps]
- Use "PageTemplate" from cfg       done [ps]
- Browser output cleanup            done [ps]