Make demo works with ember1.0 &ember-data beta 2

Make demo works with ember1.0 and ember-data beta 2
moved ~/scripts/app to ~/app, other fix

moved ~/scripts/app to ~/app, other fix to work with ember1.0 &
ember-data beta2 properly
Update VSIX with ember1.0/ember-data beta2

Update VSIX project with ember1.0/ember-data beta2. Also updated a few
other nupkgs to be as close as stable version as possible.