Files with missing or questionable licenses

[smr@…]

Initial report: ​https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=788126

Several files do not seem to be covered by any license described in the copyright file. Most serious: interprocess/sync/xsi/advanced_xsi_semaphore.hpp : No license mentioned at all python/detail/python22_fixed.h : Explicitly "All rights reserved"

Probably fine but questionable and IMHO should be documented at least as they will fail in automated checks: algorithm/cxx14/mismatch.hpp : Refers to non-existing LICENSE10.txt, probably typo And some non-standard license headers in: rational.hpp math/common_factor_rt.hpp test/utils/runtime/cla/detail/argument_value_usage.hpp shared_container_iterator.hpp program_options/detail/utf8_codecvt_facet.hpp

[Ion Gaztañaga]

advanced_xsi_semaphore.hpp was recently deleted as it was dead code not use by any other file. Ressigning to Python maintainer in order to start fixing the rest.