Add favicon - refs BT#7530
change favicon
Change of presentation - refs BT#7562
Merge branch '1.9.x' of github.com:beeznest/chamilo-lms-icpna into 1.9.x
Modify an incorrect word
Add some validations, replace some deprecated functions, avoid the allow images message and put it before send the image - refs BT#
Merge pull request #7 from FraGoTe/1.9.x

1.9.x