Add "rand" option to orderby
Merge pull request #4293 from pauloiankoski/patch-1

Add "rand" option to orderby
edit icon. #4287
Fix sort icon in firefox. Closes #4283
Don't load some classes during ajax events Closes #4282
get_form_fields method Closes #4275

@coenjacobs please review. I believe its cleaner this way.
Fix term reordering Closes #4294
Merge remote-tracking branch 'upstream/master'