Solve bug #7208
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Revert "!"

This reverts commit 65e2efff75436130780772b3ea1531af58d29a50.
Solves Bug#7210

Solve the bug when displaying icons in block courses
Ref Bug#7210
Solve bug #7210
Merge remote-tracking branch 'angel/7210' into 1.9.x

Conflicts:
	main/inc/lib/userportal.lib.php
Fixing hide buttons see BT#8417
Minor update docs + format code
Merge branch '1.9.x' of ssh://github.com/chamilo/chamilo-lms into chamilo19
Update changelog in prevision of 1.9.8.3
Merge branch '1.9.x' of github.com:chamilo/chamilo-lms into 1.9.x
Merge remote-tracking branch 'upstream/1.9.x' into 1.9.x
check token to avoid CSRF - refs BT#7215
Fixing PHP warnings see BT#8440
Merge branch '1.9.x' of ssh://github.com/chamilo/chamilo-lms into chamilo19
Minor - format code.
Minor - Format code.
Hide shared_folder user not registered in the course see BT#8074
Merge pull request #324 from FraGoTe/7215

Check token to avoid CSRF in plugins activation - refs BT#7215
Minor - format code