owncloud/core — pull request #2538 by eMerzh (2013-03-23 11:24:48+00:00)
Title: Improve detection of installations errors

When you install an app,
and smth fail because of a syntax error or smth,
owncloud does not provide feedback or message...

i've added a .fail to the ajax and i set back the button to active

may be up-ported to master