BalooDataModel rename to BalooQueryModel and replace the Query::setType with the Query::setSearchString
Review Request #120780 - Created Oct. 24, 2014 and submitted - Latest diff uploaded
So the BalooDataModel gets renamed to BalooQueryModel.
Also we are replacing the Query::setTypes, Query::type with the Query::setSearchString, Query::searchString in order to make
our model more flexible