Merge pull request #959 from rbngzlv/develop

Add hook for admin logout
issue #925 prevent double submit
Merge branch 'develop' of github.com:osclass/Osclass into develop
indent fix
issue #962
Merge branch 'hotfixes' into develop
issue #948
issue #947
Merge branch 'hotfixes' into develop
issue #
877
small improvement, related to issue #940
issue #940
DELIMITER block support when we import SQL files