Issue #2294083 by ParisLiakos: Remove usages of module_uninstall().
Issue #597236 by Berdir, catch, msonnabaum, Xano, Wim Leers, jhedstrom, amateescu, corvus_ch, swentel, moshe weitzman, Gábor Hojtsy, riccardoR, killes@www.drop.org, et al: Add entity caching to core.