Issue #1836860 by attiks, durgesh_singh, Jelle_S, nod_, vks7056, Wim Leers: Picture doesn't work with AJAX callback

Issue #1663210 by mortendk, rootwork, idebr, vks7056, ishmael-sanchez, LewisNyman, joelpittet, Manjit.Singh, Manuel Garcia, b0unty, prajaankit, alansaviolobo, atu: Clean up css in the User module

Issue #1987832 by aspilicious, disasm, webflo, vijaycs85, adci_contributor, vks7056: Convert system_test callbacks to a new style controller