Issue #2154475 by tarekdj, neelam.chaudhary, droplet, nod_, lanchez, Poornima3, jamin_melville: Convert position selectors to be compatible with with jQuery native-API selector

Issue #2398471 by DickJohnson, crazyrohila, rpayanm, lauriii, idebr, LewisNyman, saki007ster, piyuesh23, lanchez, davidhernandez: Clean up the "footer" component in Bartik

Issue #1833932 by lauriii, lokapujya, cilefen, Cottser, joelpittet, jenlampton, iMiksu, lanchez, ericrdb, mikispeed, Eric_A, mikemiles86: Convert theme_system_compact_link() into a #type link

Issue #2329919 by lauriii, Cottser, lanchez | davidhernandez: Move views_ui classes from preprocess to templates.

Issue #2329901 by lanchez, lauriii | davidhernandez: Move form classes from preprocess to templates.

Issue #2329851 by lanchez, lauriii, Jolidog | davidhernandez: Move miscellaneous system classes from preprocess to templates.

Issue #2328913 by lanchez, lauriii, joelpittet | crowdcg: Move block classes out of preprocess and into templates.

Issue #2285493 by joelpittet, lanchez: Remove deprecated 'class' property from #theme 'links' and #theme 'menu_tree' heading arrays.

Issue #2227601 by mparker17, cs_shadow, swentel, lanchez, mgifford: Added a "Visually-hidden" field label formatter.