Alter alternative set of data

Signed-off-by: atrefz <alexander.trefz@gmail.com>
Fix a few small Bugs

- cloudWidth/cloudHeight and center settings should be determined at in ._updateCloud, rather then .init
- keep things DRY
- allow updating data via .update
- keep DOM queries contained in plugin created elements

Signed-off-by: atrefz <alexander.trefz@gmail.com>
Update Demo Page

- add feature list
- add reload demo
- add redraw demo
- add debouncing to resize event

Signed-off-by: atrefz <alexander.trefz@gmail.com>
Merge branch 'master' of https://github.com/atrefz/brandwatch-challenge