XNAT-2774, XNAT-2652, XNAT-2663, XNAT-2685, XNAT-2686, XNAT-2687: Single session moving (sync) is fixed
Modified Prearchive details page to support null dates and UIDs
Modified Prearchive details page to support Unassigned sessions
Added Current Warnings to details page
Added Actions box to details page
Modified Preachive details page to auto load file counts
XNAT-2665: Moved series import filter functionality into trawler. Change is built version of https://bitbucket.org/nrg/uploadassistant/commits/4238f78d2301/.
XNAT-2665: Der. Didn't add pack.gz to last commit because I'm stupid.