Simplify duplicate facet handling

When a query parameter is used twice in search or the same facet is
selected twice in the search input handle it the same way.

- Remove special code for multi-value filter clauses
- Remove special parsing of text facet, which seems to have been
  added by mistake (the space-delimited text field might come from
  the text field being the default remainder field, meaning it takes
  the left-over text in the search box which doesn't match a facet)

h/js/directives.coffee

@@ -415,15 +415,13 @@ visualSearch = ['$parse', ($parse) ->
           callback(values or [], preserveOrder: true)
 
     scope.$watch attr.query, (query) ->
-      terms =
-        for k, v of query
-          continue unless v?.length
-          if ' ' in v
-            "#{k}: \"#{v}\""
-          else
-            "#{k}: #{v}"
-
-      _vs.searchBox.value(terms.join(' '))
+      p = 0
+      _vs.searchBox.value('')
+      for k, values of query
+        continue unless values?.length
+        unless angular.isArray values then values = [values]
+        for v in values
+          _vs.searchBox.addFacet(k, v, p++)
       _search(scope, {"this": _vs.searchQuery})
 
   restrict: 'C'

h/js/streamfilter.coffee

@@ -77,19 +77,10 @@ class QueryParser
     for searchItem in models
       category = searchItem.attributes.category
       value = searchItem.attributes.value
-
-      if category is 'results'
-        categories['results'] = [value]
-      else
-        if category is 'text'
-          # Visualsearch sickly automatically cluster the text field
-          # (and only the text filed) into a space separated string
-          catlist = []
-          catlist.push val for val in value.split ' '
-          categories[category] = catlist
+      if category of categories
+        categories[category].push value
       else
-          if category of categories then categories[category].push value
-          else categories[category] = [value]
+        categories[category] = [value]
     categories
 
   populateFilter: (filter, query) =>
@@ -99,19 +90,15 @@ class QueryParser
       unless values.length then continue
       rule = @rules[category]
 
+      unless angular.isArray values
+        values = [values]
+
       # Now generate the clause with the help of the rule
       exact_match = if rule.exact_match? then rule.exact_match else true
       case_sensitive = if rule.case_sensitive? then rule.case_sensitive else false
       and_or = if rule.and_or? then rule.and_or else 'or'
       mapped_field = if rule.path? then rule.path else '/'+category
 
-      if values.length is 1
-        oper_part =
-          if rule.operator? then rule.operator
-          else if exact_match then 'equals' else 'matches'
-        value_part = if rule.formatter then rule.formatter values[0] else values[0]
-        filter.addClause mapped_field, oper_part, value_part, case_sensitive, rule.options
-      else
       if and_or is 'or'
         val_list = ''
         first = true