Issue #2897936 by arunkumark, somepal, Chi, Cottser: check_markup() and FilterInterface refer to non-existent function filter_process_text()

Issue #2002708 by rahul.shinde, somepal, kerasai, arknoll: Remove unused local variables from core/includes/common.inc.

Issue #1978938 by dawehner, sidharthap, disasm, Letharion, pfrenssen, laurentchardin, pguillard, somepal, mrded: Fixed Convert overlay_user_dismiss_message() to a Controller.

Issue #2010982 by somepal, andypost, pplantinga | Samvel: Replace theme() with drupal_render() in system module for system_status().

Issue #2010086 by helga.chb, somepal, jenlampton, IshaDakota: Replace theme() with drupal_render() in system module for  theme_system_themes_page().

Issue #1978938 by sidharthap, disasm, laurentchardin, pguillard, dawehner, somepal: Convert overlay_user_dismiss_message() to a Controller.