Merge branch '1.9.x' of github.com:chamilo/chamilo-lms into 1.9.x
Merge branch '1.9.x' of github.com:chamilo/chamilo-lms into 1.9.x
Minor - format code.
Merge branch '1.9.x' of github.com:chamilo/chamilo-lms into 1.9.x
Follow FrontEnd standards WAI - refs CT#7063
Follow FrontEnd standards create LABEL WAI - refs CT#7063
Merge pull request #253 from FraGoTe/1.9.x

Fix WAI/WCAG AA standards label/for/h* tags - refs #7063
Partial cleanup of the ticket plugin - refs #6715
Merge remote-tracking branch 'origin/1.9.x' into 1.9.x
Add alt attribute in course icon - refs #7063
Minor - Add check to avoid Notice logs
Add alt attribute in course icon - refs #7063
Revert previous commit as images are decorative - refs #7063
Minor - fixing PHP warning.
Minor - fixing PHP warnings.
Minor - fixing PHP warning.
Fixing PHP warnings.
Minor - format code.
Re-enable jquery minified - issue was only with version 1.6.1 - see http://bugs.jquery.com/ticket/9365
Add optimization section about course popularity queries