FMSLogo Code

Correct the order of the inputs for ELLIPSE2 and explicitly call out that they are in the opposite order as ELILPSE.
Also add a descriptive paragraph that explains how the ellipse is drawn.

Reconcile the WX_PURE and the WX_MSW implementations of the WAIT command so that there's only one implementation.

Switch to the FMSLogo base directory before loading startup.logoscript when erasing the workspace.

Fix a slight regression caused by the fix for Bug #492, which is that a COPYDEF for a library procedure would have the side-effect of trying to load a logo file with the given procedure's name. This is probably unlikely to happen in practice, but during testing, it's very noticable since the "test" directory is full of files that are named after the library procedure which they test. So if the current working directory was "test" and a typical translation startup.logoscript was loaded, File -> New would end up populating the workspace with a bunch of test procedures, instead of erasing them.

Fix Bug #492; File -> New and File -> Open no longer erase translated library procedures in non-English versions of FMSLogo.

The fix was to reload startup.logoscript, which is what is done on application startup.

Add missing preprocessor directives to fix build breaks on non-Windows platforms when USE_PRECOMPILED_HEADER is not defined.

Implement lwait() on non-Windows platforms.
This was done to enable testing of SLOWDRAW on GNU/Linux.

Use Encode::encode_utf8 instead of utf8::encode, per recommendation of Perl docs.
"use utf8" is only supposed to be used to instruct Perl that the source code is in UTF-8.

Combine translations for the same English procedure in the same row.
This gives a stronger visual cue when the same procedure has multiple translations.

Ignore any COPYDEF within a procedure definition when building translation tables.
This fixes a problem with the Italian tables where "origback" appeared in the tables because a COPYDEF for it was found in procedure definition of SLOWDRAW that was duplicated within the startup-1040.logoscript.

Fix a misspelling ("one "-> "once")