* Introduced C4::UploadedFile to handle management and
progress tracking of uploaded files.
* Modified stage-marc-import.pl to handle new upload
mechanism
Signed-off-by: Joshua Ferraro <jmf@liblime.com>
Refactoring to provide single place to get CGI::Session ojbject;
fixes bug for DB storage method other than 'mysql'.
This refactoring is also part of the patch series for
handling large input files for staging and processing
MARC records.
Signed-off-by: Joshua Ferraro <jmf@liblime.com>