sphinxsearch 5.x-1.1

Bug fixes:

• Fixed bug "Could not obtain last nid." caused by error building SQL condition for node type, when only one node type has been enabled. Thanks to valcker, issue: #302614

Functionality added or changed:

• Added flood control options with different thresholds for guests/registered users.
• Added option to disable logging of search keywords, or to log them only when keywords have been specified. Note that most requests could only be made by using tagadelic/faceted search related filters.
• Added options to determine where the links of terms in the tag cloud should point to (taxonomy managed links or start search with predefined filters).
• Changed function arguments for sphinxsearch_tagadelic_build_data() and sphinxsearch_faceted_build_data(). These funcions are now easier to reuse, and eventually extend trying to not break backwards compatibility.