Merge of "in-portal/branches/5.2.x@16513" to "in-portal/branches/5.3.x@16503".
Fixes INP-1302 - Use build-in date manipulation functions instead of adodb library
Fixes INP-1203: OOP unit config creation
Releasing version 'branches/5.3.x' (copy from 'branches/5.2.x') of 'in-portal' module.
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