Restore check for database updates feature

[delphidabbler]

CodeSnip could check the database's VERSION file on GitHub and compare it to the installed database version to determine if a new version of the "main" database is available.

Suggesting this is a menu option, not an automatic feature.

Would need to disable the option if no database installed.

[delphidabbler]

This isn't going to work easily: GitHub requires https and that's not easy to implement with Indy 10 & Delphi XE.

[delphidabbler]

This won't be implemented in v4.

Deferring for consideration in a later major version.