Improve wordclouds a little

The word clouds divs are now created by displayWordcloud instead of initMetadata.
The caption is no longer an option of the chart but accessible from the dimension.

Also improves a few little things.
Update selectors in CSS
Change selectors in template
Fix cube change so that it remove old wordclouds from page
Debug new word cloud charts
Resolve confilts
Add CSS for merged functions
Merge branch 'develop' into feature-newWordClouds
Update Display according to new Query
Little modifications in CSS
Merge pull request #45 from loganalysis/feature-newWordClouds

Feature new word clouds