#333 add select2 librairy
search implementation is okay for searching.
But this is not still okay for display the selected result in the tree.
The problem is that parent/children computation is done on the need, and if the branch is close, no computations are done on the children.
Mapping.js modifications are exploration for solutions.
Actually set-up solution block on the problem of parent/child computation when needed.
Idea now be explored is about retrieve the parent's hierarchy by a search from the selected concept id.
sbroaders get all broaders id.
We can now use this results to simulate the open of each parent of the selected field
main principles are okay missing :
* blue hightlight for concepts that are already displayed. Strangely, changing id management don't push values in .exit(). Do a test case for this.
* need to synchronize the differences with editing.js
hightlighting result of the search in current graph is okay
add search related files
scroll bar is now okay. Need to add scroll centering when select a concept from the search
scroll bar improvments
#304 start creating an object from mapping.js
Need to solve bug about links
Need to use this implementation in editing.js
close remaining bugs
#304 clean comments and format