FMSLogo Code

Update the icon to match what it looks like in FMSLogo 7.0.0.

Remove the request for a new icon, since FMSLogo 7.0.0 has one (provided by Jan-Niklas Grabe).

Change the old SourceForge 6-digit ticket numbers to the new ones
that are 1-3 digits. After a SourceForge site upgrade, the ticket
numbers were re-created to be per-project and the old numbers are
no longer visible. As a result, the old numbers are completely
useless as a ticket reference.

Ignore the Polish manual.

Tag the code used to build FMSLogo 7.0.0.

Prepare the files for the release of 7.0.0.

Mark the files as having native line endings to make them easier to modify on Windows.

Update the translation tables in preparation for the 7.0.0 release.

Fix a recent regression that stopped the Del key from working in the workspace editor.

Fix a regression from 6.35.0 where items in the context menu from the minieditor and from the command input when the commander is undocked did not get disabled when selecting them does nothing.

In wxWidgets, the OnUpdate* don't fire when a context menu is displayed from a wxDialog, so the code now enables/disables each item before showing the context menu.