Adds single wordcount view to core module.
Merge remote-tracking branch 'skeleton/master'
Delete cookies on sign out rather than empty.

Fixes https://github.com/c4fcm/MediaMeter-Dashboard/issues/97
return error strings from API calls and pop up alerts (fixes #98)
adds "powered by Media Cloud" to header, links in footer, and berkman logo (fixes #95)
Pass wordcounts to WordCountResultView as element of options.
Merge remote-tracking branch 'skeleton/master'
Better handling of progress bar on WordCountResultView.
Merge remote-tracking branch 'skeleton/master'
Uncomment model:execute trigger.
Merge remote-tracking branch 'skeleton/master'
Add single word cloud results.