Re-enable export dialog (mock)
Export: populate dialog with supported export formats.
Persistence for export dialog.
Update to an up-to-date assimp build, adding FBX and proper BLEND support and the latest bugfixes.
Redist test models: add "jeep" test model.
Redist test models: add "duck" test model.
Redist test models: add "lost-empires" test model (from http://graphics.cs.williams.edu/data/meshes.xml#13)
Activate primary instance window when opening a file.
Exporter now remembers the previous file format.
Further work on UI logic for export dialog, automatically deduce file name and respond to tab changes.
ExportDialog: update caption with current file, keep export button disabled while no scene is selected.
Assimp-net: add Node.MetaData attribute when WITH_NODE_METADATA is set. This is needed for native marshalling with the export API when using the assimp trunk.
Export dialog: Progress display and failure handling
Export UI tweaks, implement "open exported file" checkbox.
Merge pull request #5 from acgessler/export

Export v1