Ticket #4403: Apply Formatting Styles is almost ready, there is a small bug of not applying styles from the same file twice (also see #4388)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35049 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Ticket #4403: making it possible to load the same style file twice

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35050 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e