Author: Rossiani Wijaya
MDL-30481 Advanced upload assignment: Fixed assignment available date string to appropriately identify past or future availability
http://git.moodle.org/gw?p=moodle.git;a=commit;h=b9509a1e454e00e065b473bb1415f0b40faec899
http://github.com/moodle/moodle/commit/b9509a1e454e00e065b473bb1415f0b40faec899
+ 2.5 en [closedassignment,mod_assignment]
+ 2.5 en [futureaassignment,mod_assignment]