search_api 7.x-1.8

This is the Search API 1.8 release, containing numerous bug fixes and one new feature.

Updating should be smooth in general. However, #2069023: Fix reaction to disabled modules improved the dependency handling of modules providing item types or service classes in use. Therefore, if you have a disabled module right now that provides an item type which some still existing index uses, or a service class with a server, you should either completely uninstall it or, better, re-enable it and manually delete the indexes or servers in question before disabling and uninstalling again.

Complete list of changes since release 1.7:

• #1414048 by drunken monkey: Fixed exception in views.inc removes all Search API tables.
• #1921690 by drunken monkey: Fixed stale Views cache when indexed fields change.
• #2077035 by maciej.zgadzaj: Fixed whitespace recognition for search keys.
• #2071229 by drunken monkey: Fixed use of core search constant.
• #2069023 by drunken monkey: Fixed reaction to disabled modules.
• #2057867 by drunken monkey: Fixed multiple values for taxonomy contextual filter.
• #2052701 by drunken monkey, erdos: Fixed cron queue state when disabling the module.
• #1878606 by drunken monkey: Fixed labels for boolean facets.
• #2053171 by drunken monkey: Improved tests.
• #1433720 by davidwbarratt, drunken monkey, JvE: Fixed handling of empty selection for checkboxes.
• #1414078 by drunken monkey, jaxxed: Fixed revert of exportables.
• #2011396 by drunken monkey: Fixed support for several facets on a single field.
• #2050117 by izus, drunken monkey: Updated README.txt to reflect removed sub-modules.
• #2041365 by drunken monkey: Fixed error reporting for the MLT contextual filter.
• #2044711 by stBorchert, drunken monkey: Fixed facet adapter's getCurrentSearch() method to not cache failed attempts.
• #1411712 by Krasnyj, drunken monkey: Fixed notices in Views with groups.
• #1959506 by jantoine, drunken monkey: Fixed "search id" for Views facets block display.
• #1902168 by rbruhn, drunken monkey, mpv: Fixed fatal error during Features import.
• #2040111 by arpieb: Fixed Views URL argument handler to allow multiple values.
• #1064520 by drunken monkey: Added a processor for highlighting.