Library requirements errors.

[René Rivera]

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libs/disjoint_sets: error: directory not found; Missing [project-root]/doc directory. The [project-root]/doc directory is required for all libraries. Sources to build with and built documentation for the library. If the library needs to build documentation from non-HTML files this location must be buildable with Boost Build.

libs/disjoint_sets: warning: file not found; Did not find [project-root]/include/boost/[library].h* file. A single header for the library is suggested at [project-root]/include/boost/[library].h* if the library does not have a header directory at [project-root]/include/boost/[library].

libs/disjoint_sets: error: directory not found; Missing [project-root]/meta directory. The [project-root]/meta directory is required for all libraries.

libs/disjoint_sets: error: directory not found; Missing [project-root]/test directory. The [project-root]/test directory is required for all libraries. Regression or other test programs or scripts. This is the only location considered for automated testing. If you have additional locations that need to be part of automated testing it is required that this location refer to the additional test locations.

EXIT STATUS: 1

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[James E. King, III]

These issues will be resolved then disjoint_sets is moved into graph. See ​https://github.com/boostorg/disjoint_sets/issues/2