Typo fix

Minor fix

Renaming the package org.luwrain.template to org.luwrain.app.base

LUWRAIN API update

Removing TextAligning

New MultilineEdit.Model interface

Fixing control panel panel

Fix to action strings

Reflecting renaming KeyboardEvent.getCommand() -> getSpecial() and is…

…Command() -> isSpecial()

Opening/saving with another charset

- No longer Document class
- EnvironmentEvent.OPEN processing improved
- Open/save with charset selecting in context menu