Add documentation to optim guide
Merge branch '1.9.x' of github.com:chamilo/chamilo-lms into 1.9.x
Minor - format code.
Minor - fixing PHP warning.
Minor - format code.
Undo change 9429727409622f0fca70e4c00d075a27b4422172
creates a bug when dealing an exercise with a timer. BT#8423
Commenting all js block see 9429727409622f0fca70e4c00d075a27b4422172
Fixing PHP warning.
Admin can see all lps.
Minor - format code.
Minor - fixing PHP warning.
Commenting code that blocks LP items to be saved see BT#8572
If the status was changed, then updated it. Don't need to set a score.

 See #5745 and BT#8572
Fix moderate-high security flaw - see #7242
Merge branch '1.9.x' of github.com:chamilo/chamilo-lms into 1.9.x
Fixing score = 0 in exam with a timer see BT#8423
Fixing &copy bug see BT#7780
Fixing copy question update list.
Add support for phone numbers to extra fields - refs #7252
Fix typo in previous commit - refs #7252