Bumping to Houdini Version: 13.0.442
Houdini Engine Version: 1.7 (API: 18)
Use the command version of "reloadAsset"
No need to explicitly create the Asset object in rebuildAsset()

It'll be created the next time getAsset() is called.
No need to use rowLayout for alignment
Create and replace the attribute checkboxes separately
Organize the asset options in the AE into separate groups
Move asset operations buttons into the "Options" group
Add some annotations to the AE
Add button to the AE for reloading asset
Fix error message format in Asset::Asset
Improve the logic of the reload asset menu

Support reloading all the selected assets, instead of just one.