Added patch version number, kind of late to do this but oh well

Update the part's Name: field when saving

Prompt for unsaved changes before loading or creating a new file

Prompt for unsaved changes in the current file if it's anonymous

Added version moniker

Added PROPERTY macro for easier exposed member variable management

Make zooming more intuitive - use incremental zooming after crossing the 15.0f mark

Add some missing icons

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mercurial