Add "View All" button for files on the dataset page

[pdurbin]

Now that we're adding scrolling, we'd like to have a "View All" button rather than forcing people to scroll and scroll until they can see all the files.

[sekmiller]

Added a prelim version that gets all. Mike will look at styling and/or adding a customizable number of records.

[sekmiller]

@mheppler added a Show All link to the footer facet of the files table.

[kcondon]

@mheppler @pdurbin @sekmiller
Scroll bar no longer working. This needs to be restored or show all removed if we're releasing Thursday

Also show all does not show all 1000 files. See Also 1000 Files dataset

[pdurbin]

@sekmiller said he'd take a look.

[sekmiller]

primefaces/primefaces#685

reported issue to PrimeFaces

[sekmiller]

We decided for the purposes of 4.2.1 to forgo this one