v0.9.0

Catlab v0.9.0

Diff since v0.8.2

Closed issues:

• Show C-set as HTML tables (#262)
• Show C-set as ASCII tables (#263)
• Reflexive graphs (#272)
• Universal property for (co)limits of C-sets (#280)

Merged pull requests:

• Structured cospans of attributed C-sets (#279) (@epatters)
• Structured cospans as a hypergraph category (#281) (@epatters)
• Axioms for SMCs with diagonals (#282) (@epatters)
• Top-level module for graphs (#283) (@epatters)
• Pretty printing of C-set tables (#284) (@epatters)