Fixing form submit from jquery UI, related to #2238565
Issue #1444038 by janusman, beeradb, dysrama, thePanz, Allie Micka, Pol, piyuesh23, rajivk, martins.bertins, stijn.blomme, jurcello, jarrodirwin: Autocomplete for custom search pages. Issue #2613596 by janusman: Add option to use the core jquery.ui autocomplete
Issue #2138429 by Nitebreed, stred, dgiamporcaro, stefan.r: Autocomplete using deprecated jQuery function
Issue #2238565 by theapi: Widget form submit bypasses submit handlers
Issue #2317751: Wrong file permissions
Issue #2157713 by DeFr: Allow autocomplete suggestions to be altered
Issue #1884134 by sdelbosc: Impossible to alter field.facet
Issue #1882050 by sdelbosc: Query alteration done too early
Issue #1093210 by SGhosh: Remove reference to indicator.gif in jquery.autocomplete.css or add image to dir
Issue #2270189 by MiroslavBanov: Autocomplete width to include border and padding
Issue #2117093 by janusman, bblake: User-entered input needs to be lowercased
Added drupal caching to getting the stopwords file from solr.
Fixed small bug calling non-existing addParam method
Issue #2291129 by janusman: Autocomplete requests hard/impossible to cache.
Make theming of suggestions happen at later stage
Fixing spellcheck theming function
Merge branch 'make-theming-final-step' into 6.x-1.x
Removed extra files
Added compatibility with apachesolr-6.x-3.x branch
Make theming a later step, just before returning json.
Added _renderItem override in autocomplete js for future per-engine theming.
Commented some debugging lines
Created api.php to document hooks
Fixing some typos. Added comments. Added type hinting for $solr
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