ncurses: save .pc files in SAGE_LOCAL/lib/pkgconfig
Added (wrapper) function is_connected().
Arghs! Failure in first commit.
Standardizing category as part of FinitePoset.__classcall__.
Trac #17059: p==Poset(p,category=p.category()) is False

Behold:

{{{
sage: p = Poset()
sage: p==Poset(p,category=p.category())
False
}}}

URL: http://trac.sagemath.org/17059
Reported by: ncohen
Ticket author(s): Travis Scrimshaw
Reviewer(s): Nathann Cohen
Trac #16392: ncurses: save .pc files in SAGE_LOCAL/lib/pkgconfig

As the description says. This is a followup to #16368.

URL: http://trac.sagemath.org/16392
Reported by: jhpalmieri
Ticket author(s): John Palmieri
Reviewer(s): Volker Braun
Trac #17022: Adding is_connected() function to Poset

This is simply matter of wrapping `._hasse_diagram.is_connected()`.

URL: http://trac.sagemath.org/17022
Reported by: jmantysalo
Ticket author(s): Jori Mäntysalo
Reviewer(s): Nathann Cohen