Little modification of QuadTree

Signed-off-by: Jean-François Erdelyi <jferdelyi@gmail.com>
Merge branch 'master' of git://github.com/sebhtml/Ray-Cloud-Browser

Conflicts:
	client/tests/test_quadtree.js

Signed-off-by: Jean-François Erdelyi <jferdelyi@gmail.com>
Client : fix a bug in classify

Signed-off-by: Jean-François Erdelyi <jean-francois.erdelyi@etu.iut-tlse3.fr>
Client : test the remove method on a large tree

Signed-off-by: Jean-François Erdelyi <jean-francois.erdelyi@etu.iut-tlse3.fr>
Client : replace h => height and w => width

Signed-off-by: Jean-François Erdelyi <jean-francois.erdelyi@etu.iut-tlse3.fr>
Client : fix bug in insert (QuadTree)

Signed-off-by: Jean-François Erdelyi <jean-francois.erdelyi@etu.iut-tlse3.fr>
Client : fix a bug in the tree center computation

Successful tests: 40016/40016

Signed-off-by: Jean-François Erdelyi <jean-francois.erdelyi@etu.iut-tlse3.fr>
Client : fix a bug in query

Signed-off-by: Jean-François Erdelyi <jean-francois.erdelyi@etu.iut-tlse3.fr>
Client : add methode queryCircle

Signed-off-by: Jean-François Erdelyi <jferdelyi@gmail.com>
Client : add method update + associated tests

Signed-off-by: Jean-François Erdelyi <jean-francois.erdelyi@etu.iut-tlse3.fr>
Merge branch 'master' of git://github.com/sebhtml/Ray-Cloud-Browser