0.5-1 installed the problems after reboot are sorted out in my testing.

For the other issue, which persists, actually all the old error messages still persist:

1) 0.5-0 installed, extras devel disabled but the update still shows up in App Mgr, shows up as "Broken but updateable"
2) Repeated reinstalls over and over yield same message "unable to update.........."
3) all other repositories disabled, extras devel enabled, update 0.5-1 shows, still shows as "Broken but updateable"
4) install results in an update from 0.5-0 to 0.5-1 but the error still comes post installation "unable to update......" and will continue to show in updates
5) installed 0.5-1, available 0.5-1 but still shows up in app manager with extras devel enabled.....

This behaviour has been observed for a while