Amend prev commit: Don't use SO_REUSEADDR for app socket under Windows (see comment)
Windows: Allow separate instances of profile loader in different concurrent user sessions
Fix ICCv4 (matrix only) profile support for CIECAM02 B2A and measurement report
Cosmetic: Fix changelog munging if entry relates to several platforms
Support other than 8 bit encoding for Y'PbPr -> Y'CbCr
DisplayCAL 3.8.9.3 released
Update ReadMe, changelog and version base
Make bwd gamut plot accurate