Fix click-filters in WebUI top-n lists

[cbuijs]

When clicking on an entry in the TOP-N lists, it opens the query-log and shows the log-entries relevant. But does not always work.

Need to fix/update/expand:

• Top Return Codes. NOERROR is "OK" in the log. And other RC's have different designations in the log. We need to make them the same.
• Top Vendors has no equivalent in the log. Maybe built it or remove the clickable links.
• Top Categories have no equivalent log message (only PARENTAL ALLOW, BLOCK and FREE)? .
• Top Groups (Check "ROUTE(MAC)" and "ROUTE(DOMAIN)").
• Some of the lists are mere keywords (like upstreams and groups), and match everything if similar words are in the log generally, not necessary the particular field in the log. Lets map this better with better filters/grep keywords added.

Refactoring needed, to many parameters/combos.

[cbuijs]

RCodes are now shown in the log. Lets see what is missing still.

[cbuijs]

See also #9.

[cbuijs]

Domain-clicking works now.

Still broken/todo:

• Top Groups, wrong filter/grep.
• Top Upstreams, wrong filter/grep.
• Top Vendors, missing code/filter/grep.