Merge branch 'release/v3.1.63' into develop
display Constructor extended attributes even where there is no other extended attribute — fixes #261
fix attribute removal in data-include, and drop section-refs while maintaining the functionality where it is already supported
remove section-refs
removed docs
Merge pull request #262 from dontcallmedom/issue261

display Constructor extended attributes even where there is no other ext...
fix disappearing ToC bug
v3.1.64
required commits after merge
overwrite from develop