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'