title: Maintain my component's properties when they are changed?
body: <p>I have a custom component with some published properties which have been used for a while in many projects. I want to make some particular changes to this component which requires removing these old properties and replacing them with new ones. Or otherwise, I'm not necessarily removing the properties, but let's say I just simply change the name of a property from <code>PropName</code> to <code>MyPropName</code> instead. Well, the next time any project using that component is opened, it will not be able to find <code>PropName</code>.</p>
  
  <p>Is there any way to automate conversion of this? Or is this something people will have to do manually? What would be the proper way to maintain component property values when the names of those properties are changed?</p>
  
  <p>And I mean just in the DFM code, not necessarily inside the source code.</p>