Squashed 'odoc/' changes from 5629c8d5..4095c1af
4095c1af Constrain lwt < 6.1.0 (6.1.1 incompatible with oxcaml)
47c161ce Minor updates
1f56d069 Better source rendering
56c34e9a test: update json_expansion_with_sources test for pos_of_loc fix
825790c5 feat: add open/include tracking to source linking
77fbf3d4 feat: add record field references to source linking
dd8d0182 feat: add constructor references to source linking
8e072559 feat: re-enable documentation links from source code
21091826 fix: correct pos_of_loc end position in source annotations
git-subtree-dir: odoc
git-subtree-split: 4095c1afe288e6bf73c4ba8006cbc67d543913a7