Support multiple versions of MdBook for docs#57495

Merged

bors merged 5 commits intorust-lang:masterfrom

jamesmunns:mdbook-compat

Jan 30, 2019

Commits on Jan 30, 2019

Only the compatibility items from the embedded book PR

James Munns
authored and
steveklabnik
committed
No consumers of MdBook2 yet

James Munns
authored and
steveklabnik
committed
Remove stable feature

James Munns
authored and
steveklabnik
committed
Update to newer version of mdbook(2)

James Munns
authored and
steveklabnik
committed
Add exception for new dependency in license checker

James Munns
authored and
steveklabnik
committed