Add missing imports in linkedToMap

fixes #1518
RegForm: Fixed error feedback on session choice
Removed forgotten fossil
Renamed doc/api to doc/dev

Moved http api docs to dev part
Added URL generator for HTTP API
Fixed Sharepoint documentation issues
Post-WIP fixes
Added requirements file for docs
Added jQuery, since readthedocs doesn't provide it
Merge branch 'v1.2'
Added libs needed to build indico
Merge branch 'v1.2'
Merge branch 'master' into wip/future-db