Show aggregated rights table and graph on sample page

[BBGuy]

Develop

• create sample_asset context
• Update code to handle sample page
  Deploy
• Pull code
• Import sample_asset context

Improvements

• wen changing the values in the slider the split values are lost and when changing the split the slider values are lost - Sufficiently improved see note below

[BBGuy]

We have an Issue where the url query parameters are not completable.
On asset page used for split percentage
/content/test?Composition=45&Performance=50&Recording=5

On sample page used by the slider
ample_asset/186?range[value]=0&range[value2]=91
will possibly need to have add code to handle the combination of the two for the sample page

[BBGuy]

I have implemented this on live now only one issue and that's the views slider (exposed form values) and the drop-down (inside the custom block form) don't work well together - if one is used the other one is reset.
should be easy to fix in the custom code but views may be more difficult.

[BBGuy]

Also fixed "Undefined index: contributions" errors on an empty asset see http://hub2.kendra.org/content/empty

[BBGuy]

I fixed the issue above for the split preserving the range looks like that should so the job as it is the second value - set your start and end then play with the drop-down
P.S all commits are against #48