Includes database changes. You need to log all terminals out during upgrade

Tweaks and fixes

• EPC fiche importer
  • bug in recent changes to make epc more memory efficient could result in c9 locking up. Now fixed (Root cause, image name collision code broken and would fail to increment and generate a new file name correctly)
  • KTM fiche importer broken because of duplicated fiche models on KTM site. Fix by indexing units by model + year and the year code.
• Add Refund Transaction. allow operator to select their own GL code
• Add rebate: allow $0 tax input. Rebates should probably never be inputted without tax, so don't do it; at least not without talking to your accountant first, but adding anyway for completeness.
• Biz Deposit report tweaks
  • Allow operator to filter results to specific area (spares, workshop, deals or customer deposits)
  • Allow operator to generate a historical deposit report for start of a specific day.
• Profit summary : remove rebate pending. Doesn't belong here
• Other - v4.1 txnengine : relevant for v5.3,
  • tweaks how lnk allocations for orders materialize. Non functional for v5.2
  • a tweak to improve txnengine performace with transmonitor_verify constraint checker : check if query planner thinks there are lots (>20) txns that require checking. if so force a planner analyze first in order to confirm planner isn't working off stale data and runs a slow plan for constraint checking.