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Issue #1227702 by drunken monkey: Improved error handling.
Issue #2150779 by hefox: Fixed "Overridden" detection for index features.
Issue #2168713 by idebr: Fixed highlighting of keys containing slashes.
Fixed small comment typo.
Follow-up to #2168713 by drunken monkey: Fixed highlighting of keys containing slashes.
Issue #2198261 by drunken monkey: Fixed fatal error on view editing.
Corrected a tiny comment typo.
Issue #2187487 by drunken monkey: Fixed admin summary of language filter.
Issue #1888174 by drunken monkey, ipallian: Fixed problems with date facets.
Issue #2219563 by drunken monkey: Added __toString() methods for queries and filters.
Issue #2169455 by drunken monkey: Fixed "undefined index" in search_api_update_7116().
Issue #2195469 by freakalis, drunken monkey: Added "Exclude fields" options to Highlighting processor.
Issue #2198791 by drunken monkey: Fixed empty Views entity filters.
Issue pagination
Issue #2179755 by drunken monkey, fago: Fixed whitespaces after HTML filter.
Issue #2135697 by drunken monkey: Fixed handling of HTML attributes in the Highlighting processor.
Issue #2219553 by drunken monkey: Fixed Views fulltext filter operators.
Issue #2233749 by rjacobs, drunken monkey: Added drush support to change the server used by an index.
Issue #2256891 by justanothermark: Fixed "0" entity labels.