- enable ocamldoc in company completion
- enable merlin-document binding
- add binding for ML <-> MLI switch
- bind most merlin commands
user visible change:
printing type at point was moved to SPC mht, and SPC mhT asks for an expression
SPC mgg/mgG is now consistent with CONVENTIONS.md, and
SPC mgb can be used to go back(in addition to default C-c &)