Add some feed info to the cog

This involves an API change: send down a trimmed feed list instead of
creating the icons list manually.
Show ! on feed errors
New features
Impose a limit on the number of unread items per feed

A feed with a very high number of unread items (nearing the global limit of
1000) could squash the unread state of other feeds. To prevent that, limit
unread items per feed to 250.

see #260
Move miniprofiler to bottom
Remove goapp folder
Remove unused file
Special case http://blogs.msdn.com/rss.aspx to set id as link

The IDs change on each page load, so every fetch we get a whole new set.
This is wrong, so force it instead to something reasonable.

fixes #260
Remove old push URL support
Remove debug
Dates
goapp -> goread
Reset in correct place
Generalize setActive for stars prep
Star toggling
Remove debug
Starred items
Merge branch 'master' of github.com:mjibson/goread
Recent update
Mark starred stories unread