Issue #2279105 by mgifford, nidaismailshah, thedavidmeister, amitgoyal, rpayanm, ameenkhan07, rakhimandhania, jhodgdon: Remove as many "..." and ellipsis characters from the codebase as possible without altering the meaning of text

Issue #1825466 by justafish, tstoeckler, alexpott, sun: [docs follow-up, then backport to D7] Allow NestedArray::mergeDeepArray() to preserve integer keys.

Issue #2324083 by er.pushpinderrana, martin_q: Fix up description of return value from NestedArray::getValue()

Issue #1825466 by justafish, sun, alexpott: Allow NestedArray::mergeDeepArray() to preserve integer keys for the purpose of merging config data.

- Patch #1704196 by sun: remove Config's dependencies on procedural Drupal code in includes/common.inc.