Release/5.2.1

[Athanasius]

Release 5.2.1

This release primarily addresses the issue of the program asking for Frontier authorization much too often.

• Actually utilise the Frontier Refresh Token when the CAPI response is "Unauthorized". The re-factoring of this code to make CAPI queries threaded inadvertently prevented this.

Thanks to all that reported this problem, helped track it down, and tested the release candidates.

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This discussion was created from the release Release/5.2.1.