refs #6404

[SVN r80902]
refs #6403

[SVN r80903]
Add link to changeset mentioned in comment.
Merge branch 'feature/comment-fixes' into develop
Remove use of obsolete BOOST_TT_BROKEN_COMPILER_SPEC

[SVN r86250]
Remove all references to now defunct (and removed) header.

[SVN r86438]
Merge branch 'feature/remove-broken-compiler-spec' into develop
Merge remote-tracking branch 'origin/develop'