Issue #2832074 by sahil.goyal, TanujJain-TJ, SchnWalter, Sweetchuck, leolandotan, Chi, DanielVeza, ameymudras: Fix hook_page_top implementation for node.module

Issue #2991219 by SchnWalter, ultrabob, nitesh624, Kristen Pol, jungle, partyka: template_preprocess_file_link() should not add microformats attribute

Issue #2822190 by webflo, Wim Leers, dawehner, alexpott, effulgentsia, SchnWalter: PathValidator validates based on a RequestContext leaked from the current request, resulting in false negatives during CLI requests and POST submissions

Issue #2350997 by SchnWalter: Fixed Help module install error when Taxonomy is disabled because of Field UI.