Coverage of advanced search box in Hosts

Adds a new web_ui module which can operate the advanced search box.
Adds tests testing the advanced search box in Hosts section.
Port access control to new framework
Merge pull request #738 from psav/akarol-accesscontrol

Port access control to new framework
Merge pull request #726 from mfalesni/adv_search

Advanced Search box testing
No longer rely on ip_echo. Good idea?