LOF changes for image/video vs all file lists #2033

Image and video lists don't get an icon.  The file type is implicit.

All file lists don't get image or video thumbnails.
Swap out old LoP for new.  Update options in exports.  #2033
LoF uses bigger icons #2033

Thanks, itweak_upload!

Some types have a generic blank page icon.  @dancabral could you fix these but keep the filenames the same?
Updated LOP help.  Added LOF help #2033
Fixed and built new sv list help docs #2033
Renamed in prev commit #2033
Cleaned up sv list dead code #2033
Fix video thumbs for new oembed version #2033
Fix more link in sv list #2033

The code that swapped it around on content type changes was reseting it to default on all box form loads.  D'oh!
Added old recent image style thumbnail view to LOF images #2033
Fixed filename for video icon #2033
LOF first round of theming: have all files, images, docs, pdfs and files looking good in sidebar and content area. #2033
Merge branch 'SCHOLAR-3.x' into 2033-lof_final

Conflicts:
	openscholar/modules/os/modules/os_sv_list/os_sv_list.module
Re-implemented fielsize sort #2033
Fixed update hook #2033

Can't update file's media_description when the field doesn't exist.
Only oembed videos get thumbnails #2033

Uplaoded videos don't have a thumbnail to display so don't even try.
Merge pull request #4660 from openscholar/2033-lof_final

2033 lof final