Px v0.10.1

• Fixed docker image to work correctly with command line flags, include kerberos
  packages
• Merged PR #233 - force flag to overwrite existing installation of Px in the
  Windows registry
• Merged PR #237 - handle pid reuse and support for pwsh
• Fixed #225, #245 - better handling of PAC file failures and fallback to DIRECT
  mode when they happen
• Replaced quickjs Context with Function as recommended in #206 to avoid thread
  safety issues in PAC handling
• Proxy reload support also for MODE_CONFIG_PAC if loading a PAC URL
• Fixed #208 - try GSS-API authentication on all OS if supported by libcurl