Provide the list of the different statuses the package has on all branches
Adjust the action buttons Give/Orphan, Take/Retire in a table

- This way the buttons are always at the same position.
- Add logic to show or not the button according to the statuses of the
  package in the different branches

Fixes https://fedorahosted.org/pkgdb2/ticket/18
Fixes https://fedorahosted.org/pkgdb2/ticket/19
Adjust the css to make the action table look nice
Filter the branches to retire to only keep the one Orphaned (via their status)
There is no point in orphaning an orphaned or retired branch
Only admins can take Retired package, users can take Orphaned packages