Corrected pims_split templates

Fixed split.condor for HTC10 by removing the quotes around an already quoted variable. I didn't find any other instances of this happening in other template files.

Also brought over update_stage commands into split.sh that disappeared sometime since 2.8.1.

shared/workspaces/alembic/versions/templates/pims_split/split_condor_2.8.3.txt

 executable = split.sh
-arguments = "$(split_dir)"{{#quicklook_url}} "$(quicklook_url)"{{/quicklook_url}}
+arguments = $(split_dir){{#quicklook_url}} $(quicklook_url){{/quicklook_url}}
 
 output = tiles/$(split_dir)/split.out
 error = tiles/$(split_dir)/split.err