Make searching for Hosts the 'original' method using the find function, but use those same things to find the hosts related with other fields such as Pending MACs, Additional MACs, Image Name, etc... This should allow removal of the searchQuery string in the relevant searchable classes

git-svn-id: https://svn.code.sf.net/p/freeghost/code/trunk@2331 71f96598-fa45-0410-b640-bcd6f8691b32
Merge svn with master