v0.9.1

Catlab v0.9.1

Diff since v0.9.0

Closed issues:

• Copy tables between C-Sets of different types (#285)
• Generic version of substitute for extensions of UWDs (#288)

Merged pull requests:

• Double Category of Squares (#278) (@jpfairbanks)
• Embedded graphs (#287) (@epatters)
• Copy parts between C-sets with different schemas (#290) (@epatters)
• Substitute UWDs with arbitrary data attributes on junctions (#291) (@epatters)
• Abbreviated presentation syntax for generators of same type (#292) (@epatters)