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'
Revert "[IMP] Consolidate big gaps in category statistics"

This reverts commit d51b103bc7ac90d9eb3d3944aaa307137f1fbbb0.
[IMP] Statistics page revamped
* First version
[FIX] Fixed a plot-related bug
* The values are now sorted and the plot is shown correctly
[FIX] # of users loaded into the BD
* Now the number of users is loaded into the DB by the statistics updater task
[FIX] Fixed axis rendering
* Now the y and x axis are rendered correctly
[FIX] Fixed x axis
* Fixed a minor error with x axis
* Added the "year" label
[IMP] Added jqplot plugins
* Plugins added: data point highlighting, mouse cursor tracking and plot zooming
[IMP] Several style enhancements
* Removed the grid from the plot
* Highlighted the current year data point
* Header adapts better to the page
* Added a button to switch to the category page