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Although the jquery plugin autocomplete.js was providing the basic
functionnality we needed, it was not natively able to display the list
of suggestions in the desired position for our textareas.

At.js is capable through the use of Caret.js of displaying a suggestion
box under the caret in a textarea.

This javascript code is heavily inspired by the code present in the
gitlab-ce project and allows us to have a nicely cached data-set to
limit database queries.

The group_id had previously been committed as a hard-coded value, thus
locking the completion to a single group. Obviously we want completion
to work for everyone, so this will achieve our goal.

autocomplete.js contains a binding function to bind the autocomplete
library to a DOM element.

The views then call this function when they are focused

With the recent changes, going back to a multi-table system, it was
necessary to add a table to contain some extra information to generic
sample sets

Removed a reference to a table that does not exist and replace with
correct reference

Although not entirely abstract these are the views used to create
generic sample_sets, as in sample_sets that are neither runs nor
patients.