FMSLogo Code

Instead, it uses the Scintilla that's within the wxWidgets library.

The scintilla directory was only needed for the Borland OWL version
of FMSLogo, which has been removed.

This change is being made to prevent a casual observer from incorrectly
concluding that FMSLogo is using an old version of Scintilla and
ascribing bugs to this.