Update FCGI script

Main code rev. 1894
Fixed issue with getting group record data

Main code rev. 1895
Fixed issue with empty journal_auth in request causing failure

Main code rev. 1896
Better error reporting for missing fields in EBSCO module

Main code rev. 1897
Tweaks to cache MARC objects when iterating through JournalAuth records during CJDB rebuilds. Saves a bunch of DB lookups and object building at the expense of memory.

Main code rev. 1898
Fixed JournalAuth merge to use DBIC in MaintTool

Main code rev. 1899