Add the emphasize style for the new functionality, selectable widgets and arrows emphasize
Add the emphasize style for the new functionality, selectable widgets and arrows emphasize

Signed-off-by: Álvaro Arranz <3a7352a9ec78d7d17a9240a830621a1f159ca041@conwet.com>

rockneurotiko/wirecloud,jpajuelo/wirecloud,rockneurotiko/wirecloud,rockneurotiko/wirecloud,rockneurotiko/wirecloud,jpajuelo/wirecloud,jpajuelo/wirecloud,jpajuelo/wirecloud