Add additional search by user or group and extra user fields in social search
Fix searching by extra user fields if no value selected
Fix searching by extra user fields if no value selected
Fix indentation, validation, unnecessary validations, language -- Recovering extra fields state after posting form!
Enabling extra fields only when User's search type selected (maybe more logical)
Some PSR-2 fixes - Removing unnecessary vars
Merge branch '8986' of https://github.com/AngelFQC/chamilo-lms into 1.9.x
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
Merge branch '1.9.x' of https://github.com/l3xbcn/chamilo-lms into l3xbcn-1.9.x
Minor - code style
Minor - Add PHPDoc
Merge branch 'l3xbcn-1.9.x' into 1.9.x