Use Sage display hook in doctests
Merge #16992 (Directly apply --fixdoctests) branch
Fix printing of types
Refactor our displayhook IPython integration
Update doctests that depended on the old displayhook
Add IPython formatting to the reference manual
Also call graphics.show() in doctest mode
Show output of the lonely generic_graph doctest
Fix doctests that have dictionary keys without stable order
TEST Trac #16746: Use the Sage displayhook in doctests