[packages/boost] (4 commits) ...- boost 1.69.0 - boost::signals replaced by header-only boost::signals2 library, needs minor porting

[qboosh]

Summary of changes:

  dade1db... - updated to 1.67.0 (new sonames) - updated link,clean-gcc- (*)
  5973d79... - up to 1.68.0 (new sonames as usual) (*)
  505467d... - don't degrade to C++ 11 from default C++ >= 14 when using (*)
  c0b2576... - boost 1.69.0 - boost::signals replaced by header-only boo (*)

(*) This commit already existed in another branch; no separate mail sent