HGBase Code (Desktop)

Improve update mechanism to work with multiple files within a zip by default.

This commit was manufactured by cvs2svn to create tag 'v_1_0'.

Close update zip file for deleting the file after extracting, delete .update folder if nothing to update.

Add a default file name filter and download the complete zip file when updating.

Small fix when updating from zip file, but still has problems.

Automatically use HGBaseText.getText for a dialog title if the entry exists.

Add constant values for menu commands.

Add some functionality for menu.

Add utility methods.

Extend playing field editor.