FMSLogo Code

Add more test coverage for CASCADE

Fix Bug #519; In the Spanish FMSLogo, CASCADA no longer leaks variables.

Fix Bug #520; Use 'THROW "ERROR 4' to localize a bad input error message in CASCADA
(Previously, the error message was hard-coded to be in English)

Tag the FMSLogo 7.3.0 release

Add performance results for FMSLogo 7.3.0 Windows 1033

Update the release instructions based on experience with the 7.3.0 release

Update the expected baseline error log based on the FMSLogo 7.3.0 test pass results.
This mostly adds the output from new tests and adds more description messages when instructions throw the wrong error.

Increment the version to 7.3.0 for a formal release.
This was motivated by the need to release the fix for Bug #518.

Remove command translations into Portuguese which duplicated a translation of different command and so was ignored.
This should have no functional impact, since I only removed the translations that were ignored by FMSLogo. This change improves the code base by making the code reflect the actual behavior. It also removes the spurious entries from the translation tables in the manual.

Remove command translations into Italian which duplicated a translation of different command and so was ignored.
This should have no functional impact, since I only removed the translations that were ignored by FMSLogo. This change improves the code base by making the code reflect the actual behavior. It also removes the spurious entries from the translation tables in the manual.