rel-2.7.0

What's Changed

• Refactor updates functionality and Scan inner-graph compilation by @brandonwillard in #848
• Print inner-graphs only once in debugprint by @brandonwillard in #953
• Remove deprecated Flatten and Tile Ops by @hectormz in #948
• Fix the type of t_fn in scan_perform.pyx by @brandonwillard in #962
• Add missing properties to copied Function objects by @brandonwillard in #968
• Increase lock scope in ModuleCache.refresh by @brandonwillard in #969
• Allow newlines in __str__ output printed by fgraph_to_python by @brandonwillard in #975

Full Changelog: rel-2.6.6...rel-2.7.0