Fix html/style for aggregate table embed

The bottom button bar was obscured. I can see no
reason why this widget would need to be 400px in
height.
Update search pagesize limit to 10000
Make CSV download URL a proper link
Refactor dimension nav template, add CSV download
Remove pagesize limit from search page download URL
Update search page download url with order change
Revert to meta download in breadcrumb nav
Improve download of entries, add aggregate table
Move download button next to data table
Merge pull request #551 from openspending/csv-download-551

Enable CSV-download of search results