Comment 2 for bug 795387

I've discussed this with huwshimi and here are my notes:

- Put a warning banner on DistroSeries:+initseries when the previous
  attempt has failed.

- On DistroSeries:+index, use the area also used for the "Derived from
  ..." and "Series initialization in progress" (the latter I only
  discovered after the call) so that people who are already accustomed
  to looking in that place will find information about failures too.

- Try to use some of the the warning banner appearance in the portlet
  area - maybe just the triangle - but don't worry if it doesn't look
  right. Screenshot some prototypes.

- After implementation talk again to huwshimi to discuss how it went
  and how easy it was to do the UI side of things.