Replace calls to get_post in group_management

Replace all calls to get_post with either get or post specifically.
Replace get_post calls in web_controller

Replace all calls to get_post with either get or post specifically.
Replace get_post in instructor group management

Replace all calls to get_post with either get or post specifically.
Replace get_post in learning_materials controller

Replace all calls to get_post with either get or post specifically.
Replace get_post in management_console

Replace all calls to get_post with either get or post specifically.
Replace all get_post calls in offering_management

Replace all calls to get_post with either get or post specifically.
Replace all get_post calls in program_management

Replace all calls to get_post with either get or post specifically.