fixes #814 clicking on clear notificaitons now clears them
fixes #815 animating the notifications by opening the dropdown for 3 seconds if a short message, and 30seconds if a long message @gretchenmcc
@gretchenmcc thanks! i fixed it, now you can click on the notification and see a list of yor corpora... eventually we were planning on putting 'corpora' as an item in the Data dropdown so that users can see and switch between corpora more easily. for now, it stays in your user profile. fixes #748
@hisakonog fixes #802 drag and drop file import is working now in Chrome 24. updated to use file.slice in addition to file.webkitSlice
Merge pull request #816 from cesine/master

More User experience fixes